Elementor 500 and 400 server error

[Zombie975]

Hey all,
I have an Elementor free.
I installed a popup (Popup Builder – Responsive WordPress Pop up – Subscription & Newsletter) and ticker (T4B News Ticker) plugin three days ago. After installing the ticker, I was unable to update Elementor with 500 server error messages. I deleted the newly installed extensions, but the error persists. At the suggestion of the service provider, I reverted to an earlier date, but the error remained. I uninstalled Elementor, reinstalled it, but the error remained.

After updating the database, Elementor throws an error message of 400, and I can't update or install anything.
[10-Dec-2020 12:18:10 UTC] PHP Warning: fopen(/tmp/popup-builder.3.71-JwVg4t.tmp): failed to open stream: No such file or directory in /home/fonixmed/public_html/wp-includes/Requests/Transport/cURL.php on line 138
[10-Dec-2020 12:18:11 UTC] PHP Warning: fclose() expects parameter 1 to be resource, boolean given in /home/fonixmed/public_html/wp-includes/Requests/Transport/cURL.php on line 409
[10-Dec-2020 12:18:12 UTC] PHP Warning: unlink(/tmp/popup-builder.3.71-JwVg4t.tmp): No such file or directory in /home/fonixmed/public_html/wp-admin/includes/class-wp-upgrader.php on line 332

According to the debug, there is an error with the hide-page-and-post-title extension. I also deleted this, but nothing has changed.
[10-Dec-2020 14:18:41 UTC] PHP Notice: Trying to get property of non-object in /home/fonixmed/public_html/wp-content/plugins/hide-page-and-post-title/hide-page-and-post-title.php on line 90
[10-Dec-2020 14:18:41 UTC] PHP Notice: Trying to get property of non-object in /home/fonixmed/public_html/wp-content/plugins/hide-page-and-post-title/hide-page-and-post-title.php on line 90
[10-Dec-2020 14:18:42 UTC] PHP Notice: Trying to get property of non-object in /home/fonixmed/public_html/wp-content/plugins/hide-page-and-post-title/hide-page-and-post-title.php on line 90

I haven't found a solution in two days, please who can help.

 

[MarcBamboru]

Hi All,

I'm new here and I cannot help for this issue but I have also a Server error 500 problem.
Hope someone can help me.

Only at my home page I cannot save my page after modification(s). According the hosting provider enough memory is available. Also confirmation on other pages no problem to save.
PhP login notes:
WordPress databasefout Duplicate entry '687-2' for key 'PRIMARY' bij query INSERT INTO `wpwy_yoast_indexable_hierarchy` (`indexable_id`, `ancestor_id`, `depth`, `blog_id`) VALUES ('687', '2', '1', '1') gemaakt door do_action('wp_ajax_save-attachment'),WP_Hook->do_action, WP_Hook->apply_filters, wp_ajax_save_attachment, wp_update_post, wp_insert_attachment, wp_insert_post, do_action('edit_attachment'),WP_Hook->do_action, WP_Hook->apply_filters, Yoast\WP\SEO\Integrations\Watchers\Indexable_Post_Watcher->build_indexable, Yoast\WP\SEO\Builders\Indexable_Builder->build_for_id_and_type, Yoast\WP\SEO\Builders\Indexable_Hierarchy_Builder->build, Yoast\WP\SEO\Builders\Indexable_Hierarchy_Builder->save_ancestors, Yoast\WP\SEO\Repositories\Indexable_Hierarchy_Repository->add_ancestor, Yoast\WP\Lib\Model->save, Yoast\WP\Lib\ORM->save, Yoast\WP\Lib\ORM::execute

Please help to locate the duplicate.
Thanks!