Error establishing a database connection!

[osmaster]

Hello, guys, after full disk on all websites on hestia “Error establishing a database connection” now i’ve deleted some files and there some space but what can I do now?

Can’t connect to MySQL localhost
ERROR 2002 (HY000): Can’t connect to local server through socket ‘/run/mysqld/mysqld.sock’ (111)

[Wibol]

I received an email with the same problem after upgrade and reboot, but ended in “(2)”:

Can't connect to MySQL localhost
ERROR 2002 (HY000): Can't connect to local server through socket '/run/mysqld/mysqld.sock' (2)

I have no databases created.

HestiaCP 1.8.8 on Debian 11 in Hetzner VPS.

[osmaster]

i’ve run command “service mysql restart” it helps

[coycol]

I resolved it by going to hestia cpanel > DB > find the database username related to that website, change database password > go back to databse wp config file, changed password > saved.
Works.