Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, null given in /homepages/37/d141797580/htdocs/link/rate.php:102 Stack trace: #0 /homepages/37/d141797580/htdocs/link/rate.php(102): mysqli_query(NULL, 'SELECT * FROM h...') #1 /homepages/37/d141797580/htdocs/link/rate.php(40): validateInputData() #2 /homepages/37/d141797580/htdocs/link/_template.php(9): opening() #3 /homepages/37/d141797580/htdocs/link/rate.php(18): include('/homepages/37/d...') #4 {main} thrown in /homepages/37/d141797580/htdocs/link/rate.php on line 102