Errors in debug.log (ver 0.9.64)

Hello.

[16-Oct-2017 09:28:47 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[16-Oct-2017 09:37:11 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[16-Oct-2017 09:49:56 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[16-Oct-2017 10:04:40 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 27
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 31
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 39
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 27
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 31
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 39
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/features.php on line 3098
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/design-manager/design-2/style.php on line 12
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 27
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 31
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 39
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 27
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 31
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 39
[17-Oct-2017 10:09:24 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/features.php on line 3098
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 27
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 31
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 39
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 27
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 31
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 39
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/features.php on line 3098
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/design-manager/design-2/style.php on line 12
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 27
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 31
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 39
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 27
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 31
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 35
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/structured-data.php on line 39
[17-Oct-2017 10:13:15 UTC] PHP Notice:  Trying to get property of non-object in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/features.php on line 3098
[17-Oct-2017 20:45:39 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[17-Oct-2017 20:54:25 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[17-Oct-2017 20:59:07 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[18-Oct-2017 18:29:34 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[18-Oct-2017 18:37:20 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[18-Oct-2017 18:38:26 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[18-Oct-2017 18:43:12 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[18-Oct-2017 18:50:36 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[18-Oct-2017 18:56:40 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139
[18-Oct-2017 19:00:22 UTC] PHP Notice:  Undefined index: ampforwp_custom_content_editor_checkbox in .../public_html/wp-content/plugins/accelerated-mobile-pages/templates/custom-amp-content.php on line 139