Fatal error: Uncaught mysqli_sql_exception: Server shutdown in progress in /var/www/app/Infrastructure/Db.php:81 Stack trace: #0 /var/www/app/Infrastructure/Db.php(81): mysqli_query(Object(mysqli), 'SELECT c.catego...') #1 /var/www/app/Domain/Categories.php(30): db->sql('SELECT c.catego...') #2 /var/www/app/Domain/Categories.php(20): categories->getCategories() #3 /var/www/app/Http/Page.php(220): categories->__construct(Object(Page)) #4 /var/www/app/Http/Page.php(43): Page->init() #5 /var/www/app/Http/PublicEntrypoint.php(30): Page->__construct() #6 /var/www/html/index.php(6): PublicEntrypoint::run('index') #7 {main} thrown in /var/www/app/Infrastructure/Db.php on line 81