Yesterday I upgraded the panel to 7.0.15. When I checked it afterwards everything was working as it should and there was no problem for hours.
But today all of a sudden all my sites started giving 501 errors. When I restarted the server the 501 errors turned into database connection errors.
When I try to enter the Current Status section in MySQL it gives the error "(2003, "Can't connect to MySQL server on '127.0.0.1' ([Errno 2] No such file or directory)")".
I cannot connect to databases from PhpMyAdmin, it gives the error "mysqli::real_connect(): (HY000/2002): No such file or directory".
When I try to stop MySql I get the error "Service stop failed!".
When I try to take a database backup I get the error "ERROR to connect database, pls check database status!".
When I go to the MySql binary log it says "Mysql status is abnormal!" error.
When I want to create a new DB, it gives the error "ERROR to connect database, pls check database status!"
When I looked at the MySql error logs, I saw that it could not find the database users. I cleared the old ones to create new logs, but now the error does not appear in the log section. But nothing about the database works.
OS: Ubuntu 22.04
aaPanel: 7.0.15
Database: MySql MariaDB 11.3.2