Fatal error: Uncaught TypeError: mysqli_num_rows(): Argument #1 ($result) must be of type mysqli_result, bool given in /utils_f_mysql.php:189 Stack trace: #0 /utils_f_mysql.php(189): mysqli_num_rows() #1 /index.php(66): TableExistsNumRows() #2 {main} thrown in /utils_f_mysql.php on line 189