Warning: mysqli_connect(): (HY000/1040): Too many connections in D:\phpstudy\WWW\FH100\conn\conn.php on line 5

Fatal error: Uncaught TypeError: mysqli_query(): Argument #1 ($mysql) must be of type mysqli, bool given in D:\phpstudy\WWW\FH100\conn\conn.php:6 Stack trace: #0 D:\phpstudy\WWW\FH100\conn\conn.php(6): mysqli_query() #1 D:\phpstudy\WWW\FH100\index.php(12): require('...') #2 {main} thrown in D:\phpstudy\WWW\FH100\conn\conn.php on line 6