Warning: mysqli_connect(): (HY000/2002): No such file or directory in /volume1/web/web.dashboard/ajax-php/mysqli-db.php on line 30

Fatal error: Uncaught Error: Call to undefined function bail() in /volume1/web/web.dashboard/aidashboard.php:12
Stack trace:
#0 /volume1/web/web.dashboard/index.php(8): require()
#1 {main}
  thrown in /volume1/web/web.dashboard/aidashboard.php on line 12