Can not connect to MySQL server.<br />
<b>Fatal error</b>:  Uncaught TypeError: mysqli_close(): Argument #1 ($mysql) must be of type mysqli, bool given in E:\wwwroot\k810.com\include\db_mysql.php:158
Stack trace:
#0 E:\wwwroot\k810.com\include\db_mysql.php(158): mysqli_close()
#1 E:\wwwroot\k810.com\include\db_mysql.php(168): dbclass-&gt;close()
#2 [internal function]: dbclass-&gt;__destruct()
#3 {main}
  thrown in <b>E:\wwwroot\k810.com\include\db_mysql.php</b> on line <b>158</b><br />