View the error log file from the PC with XAMPP using Windows Explorer.
You can't access any XAMPP system files and folder from anywhere but the PC that XAMPP is installed on for security reasons.
When I try that address I get a login screen when using just HTTP://126.96.36.199
But the 404 error when I use http://188.8.131.52/website
BTW if you are trying to access this WAN or ISP provided IP from your own network then you may not be able to.
Try the LAN IP of the PC where XAMPP is installed.
The version 3 log window seems to relate to Apache and MySQL already started.
Do they both show running in green?
Do you have Ticks that are not grayed out ie the service modules are installed?
If so try Stopping Apache and MySQL then remove the ticks in the service modules.
Then start Apache and MySQL again but don't tick the services boxes until you are certain that both Apache and MySQL are working as they should and you can access your web site without 404 errors.
Then you can install the service modules if you want Apache and MySQL to start on boot.