Issue Site data was not refreshed due to the following error: Failed to reset cache for the instance #5: PHP Fatal error

[Whois]

Server operating system version

Ubuntu 22.04

Plesk version and microupdate number

Version 18.0.63 Update #4

Hello. I have one big problem that i didnt had, can somebody help me?

I tryed to update php, install cache plugin, nothing gave a result, every day one or two times server goes down with 502 error gateway. Somebody had that kind of problem? And i didnt find any document with logs.


Thank you in advance for your help.