accesso utente errore

Ciao a tutti,
ho riscontrato una strano problema, non riesco piu a loggarmi nel sito mi restituisce il seguente errore:

Quote:

PDOException: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) in lock_may_be_available() (line 167 of /var/www/vhosts/nomesito.xx/httpdocs/includes/lock.inc).

ora ottengo questo:

Quote:

PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'base.type' in 'field list': SELECT base.fid AS fid, base.uid AS uid, base.filename AS filename, base.uri AS uri, base.filemime AS filemime, base.filesize AS filesize, base.status AS status, base.timestamp AS timestamp, base.type AS type FROM {file_managed} base WHERE (base.fid IN (:db_condition_placeholder_0)) ; Array ( [:db_condition_placeholder_0] => 0 ) in DrupalDefaultEntityController->load() (linea 196 di /var/www/vhosts/nomesito/httpdocs/includes/entity.inc).