Plugin causes white homepage with caching

Hi there,

We’ve been having caching issues with WP-Optimize’s caching feature. Whenever caching is enabled, the homepage of our website loads but no content is shown, it’s just a white page with (only the favicon loads).

WP-Optimize support has looked into this and they keep persisting that the issue is caused by the Elementor Addon Elements plugin. Here’s what they say:
“I’ve tested your recommendations on both the devices, but at the end results was the plugin “Elementor Addon Elements”, As soon as we activate the plugin the page loads bank, like I said there;s a fatal error generated that you have to report to plugin authos in-order to fix it/

[03-May-2022 02:03:50 UTC] PHP Warning: filesize(): stat failed for /home/site/wwwroot/wp-content/updraft/backup_2022-05-03-0400_Fibronic_37459e00dba7-others.zip.tmp in /home/site/wwwroot/wp-content/plugins/updraftplus/backup.php on line 3629
[03-May-2022 13:33:47 UTC] PHP Fatal error: Uncaught Error: Call to a member function clear_cache() on null in /home/site/wwwroot/wp-content/plugins/addon-elements-for-elementor-page-builder/elementor-addon-elements.php:78
Stack trace:
#0 /home/site/wwwroot/wp-includes/class-wp-hook.php(307): eae_activate(false)
#1 /home/site/wwwroot/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array)
#2 /home/site/wwwroot/wp-includes/plugin.php(474): WP_Hook->do_action(Array)
#3 /home/site/wwwroot/wp-admin/includes/plugin.php(689): do_action(‘activate_addon-…’, false)
#4 /home/site/wwwroot/wp-admin/includes/plugin.php(865): activate_plugin(‘addon-elements-…’, ‘https://fibronic…’, false, false)
#5 /home/site/wwwroot/wp-admin/plugins.php(124): activate_plugins(Array, ‘https://fibronic…’, false)
#6 {main}
thrown in /home/site/wwwroot/wp-content/plugins/addon-elements-for-elementor-page-builder/elementor-addon-elements.php on line 78″

This issue is also happening on our customer’s websites so we would really appreciate it if you could look into this. We’ve disabled caching for now so you can’t reproduce the issue. But inspecting the frontend doesn’t reveal anything anyway.

Kind regards,

Frank

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