I updated Matomo, but it seems one of two websites I use the tracker is not tracking at all.
Turned on error-reporting PHP, no php-errors, no access/error logs in /var/log.
I am using WP-Matomo plugin in Wordpress, tried numerous options, it states it is connecting:
WP-Matomo 1.0.22 is successfully connected to Matomo 3.14.0. You are running WordPress 5.4.2.
I have tried using the self hosted HTTP-API and PHP-API but it still gives me no data. The other website on the same server and same settings works fine.
Deleted the entire config for the second website, cleared cache and made a new config, still the same results. No cookies set for my IP, hence I even visited the website anonymous via mobile.
What else to check?