Fatal error: Uncaught TypeError: mysqli_close(): Argument #1 ($mysql) must be of type mysqli, null given in /home/team-alvorada/www/pijin.yookies.jp/common/mysql.php:77 Stack trace: #0 /home/team-alvorada/www/pijin.yookies.jp/common/mysql.php(77): mysqli_close() #1 /home/team-alvorada/www/pijin.yookies.jp/3-2.php(31): dbclass->close() #2 {main} thrown in /home/team-alvorada/www/pijin.yookies.jp/common/mysql.php on line 77