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[Ahmad12]

shall i try reinstalling plesk?

I've also upgrade mariadb from 5 to 10 is tha compatible with plesk or it could be the issue?

 

[IgorG]

shall i try reinstalling plesk?

It would be better try to contact Plesk Support Team first.

 

[Ahmad12]

the issue is solved - it was DNS problem https://kb.odin.com/en/125375