WP Error caused by pro (cornerstone) framework

[syquest]

Without changing anything myself on the website I just got the error below.
Otherwise, I get 404 errors constantly by all of my Pro websites (see bottom - seems to be the WP-Cerber plugin).

Can you point me in a right direction?

Cheers
Florian

Fehler-Details

Ein Fehler vom Typ E_ERROR wurde in der Zeile 11 der Datei /home/www/wp-stiftung/wp-content/themes/pro/framework/views/icon/wp-sidebar.php verursacht. Fehlermeldung: Uncaught Error: Call to undefined function x_get_content_layout() in /home/www/wp-stiftung/wp-content/themes/pro/framework/views/icon/wp-sidebar.php:11
Stack trace:
#0 /home/www/wp-stiftung/wp-content/themes/pro/cornerstone/includes/elements/shim.php(278): include()
#1 /home/www/wp-stiftung/wp-content/themes/pro/cornerstone/includes/elements/shim.php(144): X_View_Router::render(’/home/www/wp-st…’, Array, true)
#2 /home/www/wp-stiftung/wp-content/themes/pro/sidebar.php(15): x_get_view(‘icon’, ‘wp’, ‘sidebar’)
#3 /home/www/wp-stiftung/wp-includes/template.php(722): require_once(’/home/www/wp-st…’)
#4 /home/www/wp-stiftung/wp-includes/template.php(671): load_template(’/home/www/wp-st…’, true)
#5 /home/www/wp-stiftung/wp-includes/general-template.php(111): locate_template(Array, true)
#6 /home/www/wp-stiftung/wp-content/themes/pro/framework/views/icon/wp-404.php(23): get_sidebar()
#7 /home/www/wp-stiftung/wp-content/themes/pro/cornerstone/includes/elements/shim.php(278): include(’/home/www/wp-st…’)
#8 /ho####

---

Fehler-Details

Ein Fehler vom Typ E_ERROR wurde in der Zeile 15 der Datei /home/www/wp-stiftung/wp-content/themes/pro/404.php verursacht. Fehlermeldung: Uncaught Error: Call to undefined function x_get_view() in /home/www/wp-stiftung/wp-content/themes/pro/404.php:15
Stack trace:
#0 /home/www/wp-stiftung/wp-content/plugins/wp-cerber/cerber-load.php(3871): include()
#1 /home/www/wp-stiftung/wp-content/plugins/wp-cerber/cerber-load.php(1955): cerber_404_page()
#2 /home/www/wp-stiftung/wp-content/plugins/wp-cerber/cerber-load.php(1930): cerber_access_control()
#3 /home/www/wp-stiftung/wp-includes/class-wp-hook.php(288): {closure}(’’)
#4 /home/www/wp-stiftung/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array)
#5 /home/www/wp-stiftung/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#6 /home/www/wp-stiftung/wp-settings.php(524): do_action(‘init’)
#7 /home/www/wp-stiftung/wp-config.php(120): require_once(’/home/www/wp-st…’)
#8 /home/www/wp-stiftung/wp-load.php(37): require_once(’/home/www/wp-st…’)
#9 /home/www/wp-stiftung/wp-login.php(12): require(’/home/www/wp-st…’)
#10 {main}
thrown####

[nabeel]

Hi Florian,

Thank you for reaching out to us. You seem to have quite a few licenses registered on your account so I am not sure which website is in question. There could be multiple factors of the issue you’re having, please check for the following first:

1. Ensure everything is up to date including WordPress according to our version compatibility list at https://theme.co/apex/forum/t/troubleshooting-version-compatibility/195. Please follow the best practices when updating your theme and plugins. See https://theme.co/apex/forum/t/setup-updating-your-themes-and-plugins/62 for more details.

2. Clear all caches including browser cache then deactivate your caching plugin and other optimization plugins. If you’re using a CDN, please clear the CDN’s cache and disable optimization services.

3. Test for a plugin conflict. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it’s fixed, you’ll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.

4. Deactivate your child theme and switch to parent theme

If you still have problems kindly get back to us with the result of the steps above and URL/User/Pass of your WordPress dashboard using the Secure Note functionality of the post to follow up the case.

Thanks.