SQLSTATE[08006] [7] connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" failed: No such file or directory Is the server running locally and accepting connections on that socket?

An exception was thrown in the B2DB framework

/var/www/bugs.arx-libertatis.org/thebuggenie/core/B2DB/Core.class.php, line 531:
SQLSTATE[08006] [7] connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" failed: No such file or directory Is the server running locally and accepting connections on that socket?

SQL:

Unknown: write failed: No space left on device (28)

The following error occured:

Unknown: write failed: No space left on device (28) in Unknown, line 0