Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 2006 MySQL server has gone away in /volume1/docker/codeserver/workspace/ebook_manager/models/Visit.php:18 Stack trace: #0 /volume1/docker/codeserver/workspace/ebook_manager/models/Visit.php(18): PDOStatement->execute(Array) #1 /volume1/docker/codeserver/workspace/ebook_manager/views/layout/header.php(4): Visit->recordVisit() #2 /volume1/docker/codeserver/workspace/ebook_manager/views/ebook/index.php(2): require('/volume1/docker...') #3 /volume1/docker/codeserver/workspace/ebook_manager/core/Controller.php(10): require_once('/volume1/docker...') #4 /volume1/docker/codeserver/workspace/ebook_manager/controllers/EbookController.php(23): Controller->view('ebook/index', Array) #5 /volume1/docker/codeserver/workspace/ebook_manager/index.php(27): EbookController->index() #6 {main} thrown in /volume1/docker/codeserver/workspace/ebook_manager/models/Visit.php on line 18