Hello ,
my coppermine gallery has been successfully installed and was working but a couple of times I'm getting this error:
Coppermine critical error:
Unable to connect to database !
MySQL said: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
How can I fix it please?
it's not related to Coppermine
you can't fix that !
I assume that is MySql server issue , ask your host support.