Fatal error: Uncaught Error: Undefined constant "_PS_MODE_DEV_" in /home/hepsian/public_html/config/defines.inc.php:35
Stack trace:
#0 /home/hepsian/public_html/config/config.inc.php(34): require_once()
#1 /home/hepsian/public_html/index.php(27): require('...')
#2 {main}
thrown in /home/hepsian/public_html/config/defines.inc.php on line 35