[17-May-2019 02:07:27 UTC] PHP Fatal error:  Uncaught Doctrine\DBAL\DBALException: Failed to connect to the database: An exception occured in driver: SQLSTATE[HY000] [2002] No such file or directory in /snap/nextcloud/13144/htdocs/lib/private/DB/Connection.php:64
Stack trace:
#0 /snap/nextcloud/13144/htdocs/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(429): OC\DB\Connection->connect()
#1 /snap/nextcloud/13144/htdocs/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(389): Doctrine\DBAL\Connection->getDatabasePlatformVersion()
#2 /snap/nextcloud/13144/htdocs/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(328): Doctrine\DBAL\Connection->detectDatabasePlatform()
#3 /snap/nextcloud/13144/htdocs/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/Connection.php(623): Doctrine\DBAL\Connection->getDatabasePlatform()
#4 /snap/nextcloud/13144/htdocs/lib/private/DB/Connection.php(151): Doctrine\DBAL\Connection->setTransactionIsolation(2)#5 /snap/nextcloud/13144/htdocs/3rdparty/doctrine/dbal/lib/Doctrine/DBAL/DriverManager.php(172): OC\DB\Connection in /snap/nextcloud/13144/htdocs/lib/private/DB/Connection.php on line 64