The problem is that when I try to do radiosity in sapien or tool, I get an error. I imported the .debug file that was created and I saw that the complete floor of the level doesn't work.
If someone who knows how to make maps is ready to help, I will send the link to the .max file.
Remember that I will soon post pictures of the 3D model so no one can steal the 3d file, fix it and make a map for himself.
<EDIT>
Here is a picture of the map in 3dsmax.

The idea is from a vacation in France.
The one who fixes it will get credit, of course.
</EDIT>
<EDIT2>Renamed the topic</EDIT2>