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On Plesk for Linux mod_status is disabled on upgrades to improve Apache security. This is a one-time operation that occurs during an upgrade. You can manually enable mod_status later if needed.
I rented a dedicated 16 core 64 ram server and the problem was not solved there and it started to hang. Sites don't open at all and create cpu bloat. I was also seeing mysql log error errors in ssh. That's why I suffered a lot of damage.
Why does 100% cpu usage occur? Do you have information and can you help?
I am asking to clarify whether sw-engine, sw-cp-server or nginx are at 100%. Could you please provide the output of this command here?
# ps aux | egrep 'sw-engine|sw-cp-server|nginx'