No Visual Editing

Hi, I appear to have a problem activating the Visual Editor in Mailpoet. I have listed the errors I get below, all seem to be related to tiny_mce.
Any help would be appreciated.
Regards

———–

Deprecated TinyMCE API call: <target>.onBeforeUnload.add(..)
tiny_mce.js?ver=2.7.2:1 Uncaught TypeError: p is not a constructork.create.init @ tiny_mce.js?ver=2.7.2:1(anonymous function) @ tiny_mce.js?ver=2.7.2:1(anonymous function) @ tiny_mce.js?ver=2.7.2:1c.each @ tiny_mce.js?ver=2.7.2:1o @ tiny_mce.js?ver=2.7.2:1(anonymous function) @ tiny_mce.js?ver=2.7.2:1p @ tiny_mce.js?ver=2.7.2:1
plugins.js:18972 Uncaught TypeError: Cannot read property ‘contains’ of undefinedhasClass @ plugins.js:18972fixWYSIWYGObserver @ plugins.js:8825
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/colorpicker/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/colorpicker/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/hr/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/hr/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/themes/modern/theme.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/themes/modern/theme.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/charmap/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/charmap/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/lists/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/lists/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/media/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/media/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/paste/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/paste/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/textcolor/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/textcolor/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/tabfocus/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/tabfocus/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/fullscreen/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/fullscreen/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wordpress/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wordpress/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wpautoresize/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wpautoresize/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wpemoji/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wpemoji/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wpeditimage/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wpeditimage/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wpgallery/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wpgallery/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wpdialogs/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wpdialogs/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wplink/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
tinymce.min.js?ver=4310-20160418:4 Failed to load: https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wplink/plugin.js
tinymce.min.js?ver=4310-20160418:4 GET https://www.domain.com/wp-content/plugins/wysija-newsletters/js/tinymce/plugins/wptextpattern/plugin.js?wp-mce-4310-20160418 e @ tinymce.min.js?ver=4310-20160418:4(anonymous function) @ tinymce.min.js?ver=4310-20160418:4n @ tinymce.min.js?ver=4310-20160418:3p @ tinymce.min.js?ver=4310-20160418:4loadScripts @ tinymce.min.js?ver=4310-20160418:4loadQueue @ tinymce.min.js?ver=4310-20160418:4t @ tinymce.min.js?ver=4310-20160418:11A.render @ tinymce.min.js?ver=4310-20160418:11a @ tinymce.min.js?ver=4310-20160418:11(anonymous function) @ tinymce.min.js?ver=4310-20160418:11n @ tinymce.min.js?ver=4310-20160418:3c @ tinymce.min.js?ver=4310-20160418:11e @ tinymce.min.js?ver=4310-20160418:2m @ tinymce.min.js?ver=4310-20160418:2a @ tinymce.min.js?ver=4310-20160418:2
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