An AJAX HTTP error occurred. HTTP Result Code: 200 Debugging information follows. Path: /myrestaurant/web/core/install.php?rewrite=ok&profile=openrestaurant&langcode=nl&continue=1&id=1&op=do_nojs&op=do StatusText: OK ResponseText: PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away in Drupal\Core\Routing\MatcherDumper->dump() (line 94 of /home/cabox/workspace/myrestaurant/web/core/lib/Drupal/Core/Routing/MatcherDumper.php).Uncaught exception thrown in session handler.Drupal\Core\Database\DatabaseExceptionWrapper: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: SELECT 1 AS expression FROM {sessions} sessions WHERE sid = :db_condition_placeholder_0; Array ( [:db_condition_placeholder_0] => CG9VcTbb1RRikkiq3b60-Su-iWtEFVHBK4O-ZrsmgfQ ) in Drupal\Core\Session\SessionHandler->write() (line 84 of /home/cabox/workspace/myrestaurant/web/core/lib/Drupal/Core/Session/SessionHandler.php). Drupal\Core\Session\SessionHandler->write('aKYjabDU0_Gfjah3vIbbmlKWyCwaOeFivSNIg80mu6Y', '_sf2_meta|a:4:{s:1:"u";i:1539859863;s:1:"c";i:1539859119;s:1:"l";s:7:"2000000";s:1:"s";s:43:"WYc58qmHQHSzUKIYoIDXPN6IjC6BcZi9wMkqkyhfDdU";}batches|a:1:{i:1;b:1;}_sf2_attributes|a:0:{}_symfony_flashes|a:0:{}') (Line: 90) Symfony\Component\HttpFoundation\Session\Storage\Handler\WriteCheckSessionHandler->write('aKYjabDU0_Gfjah3vIbbmlKWyCwaOeFivSNIg80mu6Y', '_sf2_meta|a:4:{s:1:"u";i:1539859863;s:1:"c";i:1539859119;s:1:"l";s:7:"2000000";s:1:"s";s:43:"WYc58qmHQHSzUKIYoIDXPN6IjC6BcZi9wMkqkyhfDdU";}batches|a:1:{i:1;b:1;}_sf2_attributes|a:0:{}_symfony_flashes|a:0:{}') (Line: 75) Drupal\Core\Session\WriteSafeSessionHandler->write('aKYjabDU0_Gfjah3vIbbmlKWyCwaOeFivSNIg80mu6Y', '_sf2_meta|a:4:{s:1:"u";i:1539859863;s:1:"c";i:1539859119;s:1:"l";s:7:"2000000";s:1:"s";s:43:"WYc58qmHQHSzUKIYoIDXPN6IjC6BcZi9wMkqkyhfDdU";}batches|a:1:{i:1;b:1;}_sf2_attributes|a:0:{}_symfony_flashes|a:0:{}') session_write_close() Notice: Undefined offset: 0 in /home/cabox/workspace/myrestaurant/web/core/lib/Drupal/Core/Utility/Error.php on line 122 Notice: Undefined index: file in /home/cabox/workspace/myrestaurant/web/core/includes/errors.inc on line 79 Notice: Undefined index: line in /home/cabox/workspace/myrestaurant/web/core/includes/errors.inc on line 80 Uncaught exception thrown in shutdown function.Drupal\Core\Database\DatabaseExceptionWrapper: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away: DELETE FROM {semaphore} WHERE value = :db_condition_placeholder_0; Array ( [:db_condition_placeholder_0] => 12514262885bc865a3b35109.90578809 ) in _drupal_shutdown_function() (line 1041 of /home/cabox/workspace/myrestaurant/web/core/includes/bootstrap.inc). _drupal_shutdown_function()