Thank you very much. After hours of working. i got it:
Copy databases to the backup:
# cp -a /var/lib/mysql{,_before_restore}
Re-initialized the global tables:
# mysql_install_db
Restored Plesk database administrator account using manual method of the following article: Unable to access...
Hello,
I despair of my Plesk instance.
i tried to fix a update issue (upgrade from 17.8.11 to 18)
but i did something wrong and now i get the Server Error 500 zend_db and all website are offline
service mysql status
● mysql.service - LSB: Start and stop the mysql database server daemon...