Impossible de mettre a jour Prestashop 1.7.5.1

Bonjour,

J'essaye de mettre à jour ma boutique et voici l'erreur qui apparait :

NTERNAL] /home/immovaleig/www/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php line 104 - PDO::query(): MySQL server has gone away
[INTERNAL] /home/immovaleig/www/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php line 104 - PDO::query(): Error reading result set's header
Updating database schema...
12:05:38 ERROR [console] Error thrown while running command "prestashop:schema:update-without-foreign". Message: "An exception occurred while executing 'SELECT COLUMN_NAME AS Field, COLUMN_TYPE AS Type, IS_NULLABLE AS `Null`, COLUMN_KEY AS `Key`, COLUMN_DEFAULT AS `Default`, EXTRA AS Extra, COLUMN_COMMENT AS Comment, CHARACTER_SET_NAME AS CharacterSet, COLLATION_NAME AS Collation FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = 'immovaleig18' AND TABLE_NAME = 'ps_3link_block_shop'':
SQLSTATE[HY000]: General error: 2006 MySQL server has gone away" ["exception" => Doctrine\DBAL\Exception\DriverException { …},"command" => "prestashop:schema:update-without-foreign","message" => """ An exception occurred while executing 'SELECT COLUMN_NAME AS Field, COLUMN_TYPE AS Type, IS_NULLABLE AS `Null`, COLUMN_KEY AS `Key`, COLUMN_DEFAULT AS `Default`, EXTRA AS Extra, COLUMN_COMMENT AS Comment, CHARACTER_SET_NAME AS CharacterSet, COLLATION_NAME AS Collation FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = 'immovaleig18' AND TABLE_NAME = 'ps_3link_block_shop'':\n \n SQLSTATE[HY000]: General error: 2006 MySQL server has gone away """]
In AbstractMySQLDriver.php line 115:
An exception occurred while executing 'SELECT COLUMN_NAME AS Field, COLUMN_
TYPE AS Type, IS_NULLABLE AS `Null`, COLUMN_KEY AS `Key`, COLUMN_DEFAULT AS
`Default`, EXTRA AS Extra, COLUMN_COMMENT AS Comment, CHARACTER_SET_NAME A
S CharacterSet, COLLATION_NAME AS Collation FROM information_schema.COLUMNS
WHERE TABLE_SCHEMA = 'immovaleig18' AND TABLE_NAME = 'ps_3link_block_shop'
':
SQLSTATE[HY000]: General error: 2006 MySQL server has gone away
In PDOConnection.php line 106:
SQLSTATE[HY000]: General error: 2006 MySQL server has gone away
In PDOConnection.php line 104:
SQLSTATE[HY000]: General error: 2006 MySQL server has gone away
prestashop:schema:update-without-foreign [-h|--help] [-q|--quiet] [-v|vv|vvv|--verbose] [-V|--version] [--ansi] [--no-ansi] [-n|--no-interaction] [-e|--env ENV] [--no-debug] [--id_shop [ID_SHOP]] [--id_shop_group [ID_SHOP_GROUP]] [--]

Merci d'avance pour votre collaboration