Disk space issue, after no data collected

Hi,

we recently had an issue with disk space and caused Matomo to stop collecting data.
I tried to restore a db dump but when starting still no data collected.
Also removed MariaDB, tried with MySQL, restored db dump, not solved this either.

Environment: Matomo 5.1.0, Ubuntu server v.20.04
Php8.3, 11.4.2-MariaDB-ubu2004-log, Nginx 1.18.

What / how to fix/ solve? Anybody had this issue before?

Thanks.

In our case because of maintenance / upgrades we accidentally modified the /etc/nginx/sites-available/matomo.conf. this line was location missing the essential php files which Matomo requires to fetch data, after adding these it was working again. ( ~ ^/(index|matomo|piwik|js/index).php$ ). Correct example here: https://github.com/matomo-org/matomo-nginx/blob/5b232af8ec1fd9d033f1c4ab9343f4073df64644/sites-available/matomo.conf

Too bad Matomo doesn’t detect this and gives some warning somewhere.