100% CPU load / Value of type null is not callable

Hello all,

I currently have the problem that Matomo uses my CPU to 100%. Until now everything ran perfectly for years. Because of this the temperature of my dedicated server rises from 45°C to 60°C.

I have already overwritten all files, then it goes for a while and then starts again.

When I terminate the processes with kill 9, new processes always follow (i stopped now the cron).

The Webpage shows:

An error occurred

Value of type null is not callable

Thanks and regards,



no ideas?