Piwik encoutered an error: Uncaught PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away in /var/www/piwik.vh-hosting.nl/public_html/libs/Zend/Db/Statement/Pdo.php:228 Stack trace: #0 /var/www/piwik.vh-hosting.nl/public_html/libs/Zend/Db/Statement/Pdo.php(228): PDOStatement->execute(Array) #1 /var/www/piwik.vh-hosting.nl/public_html/libs/Zend/Db/Statement.php(300): Zend_Db_Statement_Pdo->_execute(Array) #2 /var/www/piwik.vh-hosting.nl/public_html/libs/Zend/Db/Adapter/Abstract.php(479): Zend_Db_Statement->execute(Array) #3 /var/www/piwik.vh-hosting.nl/public_html/libs/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SELECT * FROM p...', Array) #4 /var/www/piwik.vh-hosting.nl/public_html/core/Db/Adapter/Pdo/Mysql.php(245): Zend_Db_Adapter_Pdo_Abstract->query('SELECT * FROM p...', 'anonymous') #5 /var/www/piwik.vh-hosting.nl/public_html/libs/Zend/Db/Adapter/Abstract.php(736): Piwik\Db\Adapter\Pdo\Mysql->query('SELECT * FROM p...', 'anonymous') #6 /var/www/piwik.vh-hosting.nl/public_html/plug (which lead to: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away)