i still have this issue with installation... Can you help me please?

[Info] Connecting to database...
Warning: mysqli::__construct() expects parameter 5 to be integer, string given in /var/www/html/juy/install/functions.php on line 847

[Success] Connected to database.
[Info] Connecting to Website database
Warning: mysqli::select_db(): Couldn't fetch mysqli in /var/www/html/juy/install/functions.php on line 857

using my admin name and pass i choosed during installation.
is showing loading animation forever

Fatal error: Call to a member function select_db() on null in /var/www/x.net/cw/core/includes/misc/connect.php on line 71

fresh installation

Staff/admin panel is only loading for ever when u press login.

• On the release source, not master.

Here will be all the updates that will be needed to add to the project.

Website's Security Check Not Done Yet

Verifications:

• On admin panel
• On staff panel
• On user panel
• On Vote panel
• On Donation panel

Check Server versions:

• Vanilla*
• TBC*
• Wotlk - 3.3.5a
• Cata*
• Mop*
• Legion*
  *(version to be mentioned)

To Fix:

• Vote panel timer

To Add:

• Armory
• Multi host support

Fatal error: Uncaught Error: Call to undefined function opcache_compile_file() in C:\xampp\htdocs\core\includes\classes\cache.php:37 Stack trace: #0 C:\xampp\htdocs\core\includes\classes\cache.php(89): Cache->__construct() #1 C:\xampp\htdocs\core\includes\loader.php(23): require_once('C:\xampp\htdocs...') #2 C:\xampp\htdocs\index.php(21): require('C:\xampp\htdocs...') #3 {main} thrown in C:\xampp\htdocs\core\includes\classes\cache.php on line 37

Fatal error: Uncaught Error: Call to undefined function loadCustomErrors() in D:\wowmir\phpweb\WWW\core\includes\configuration.php:327 Stack trace: #0 D:\wowmir\phpweb\WWW\core\includes\loader.php(33): require() #1 D:\wowmir\phpweb\WWW\index.php(23): require('D:\wowmir\phpwe...') #2 {main} thrown in D:\wowmir\phpweb\WWW\core\includes\configuration.php on line 327

Loading Server status...
Also this showing forever

Will you add an armory too? :)