Warning: Undefined variable $mysqli in /home/yfaaryce/valparaisomijas.com/admin/config_de.inc on line 503

Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /home/yfaaryce/valparaisomijas.com/admin/config_de.inc:503 Stack trace: #0 /home/yfaaryce/valparaisomijas.com/admin/config_de.inc(503): mysqli_query(NULL, 'select * FROM l...') #1 /home/yfaaryce/valparaisomijas.com/italian_nights.php(3): include('/home/yfaaryce/...') #2 {main} thrown in /home/yfaaryce/valparaisomijas.com/admin/config_de.inc on line 503