Dear All,
I ran into similar issues: Managed WordPress by IONOS; after installing and activating the WP Plugin, it appeared that my whole WP site was down (internal server errors).
With some patience and several reloads, I entered the Plugin directory and deactivated the Matomo WP Plugin. Now everything is back to normal.
I am going to uninstall the Plugin and try the Matomo Cloud. There is a Matomo WP Plugin connecting the Matomo cloud with WP: https://matomo.org/faq/wordpress/why-are-there-two-different-matomo-for-wordpress-plugins-what-is-the-difference-to-wp-matomo-integration-plugin/
@till_mementor Any reason why you are using a 3rd party plugin instead? (If so, which one are you using).
Thank you also for the link to the Strato issues; I found further links that can be related:
(As a new user, I can only add 2 links, please search for “php-8-0-not-ready/49372”)
IONOS recently upgraded to WP 6.2 and PHP 8, so maybe it’s not a IONOS issue but rather an incompatibility with the current version of those two products.
Any updates / additional information will be highly appreciated.
With best wishes,
Alexander