fatal error

Hi !
I have this error that comes up regularly. Can someone help me?
Regards,
Stan

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away in /home/goldservva/www/includes/database/database.inc:2227 Stack trace: #0 /home/goldservva/www/includes/database/database.inc(2227): PDOStatement->execute(Array) #1 /home/goldservva/www/includes/database/database.inc(697): DatabaseStatementBase->execute(Array, Array) #2 /home/goldservva/www/includes/database/database.inc(2406): DatabaseConnection->query('SELECT expire, ...', Array, Array) #3 /home/goldservva/www/includes/lock.inc(167): db_query('SELECT expire, ...', Array) #4 /home/goldservva/www/includes/lock.inc(146): lock_may_be_available('schema:runtime:...') #5 /home/goldservva/www/includes/bootstrap.inc(438): lock_acquire('schema:runtime:...') #6 /home/goldservva/www/includes/bootstrap.inc(460): DrupalCacheArray->set(Array) #7 [internal function]: DrupalCacheArray->__destruct() #8 {main} thrown in /home/goldservva/www/includes/database/database.inc on line 2227

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Bonjour,
Quelqu'un aurait une idée pour cette erreur fatale?
Merci pour votre précieuse aide !
Stan

Stan