error 500 after installation, all of the requirements have been met and also using MySQL in our server [closed]

Question

error 500 after installation, all of the requirements have been met and also using MySQL in our server. I can input my database, and it will go through to successful installation page and instruction to remove the install folder but after clicking continue it will go error 500, and no database saved in our phpmyadmin.

Answer 1

If the server meets the requirements of the script, the installation will normally go through.
By the way, what error was found on your server?

Answer 2

thrown in /home/centralsupport/public_html/mlm.centralsupport.asia/common/init.db.php on line 42
#1 /home/centralsupport/public_html/mlm.centralsupport.asia/admin/index.php(2): include_once('/home/centralsu...')
#0 /home/centralsupport/public_html/mlm.centralsupport.asia/common/init.loader.php(3): include_once()
PHP Fatal error:  Uncaught Error: Undefined constant "DB_NAME" in /home/centralsupport/public_html/mlm.centralsupport.asia/common/init.db.php:42
  thrown in /home/centralsupport/public_html/mlm.centralsupport.asia/common/init.db.php on line 42

Hi, this is the error. thank you for your response