Charachter non collides with walls

The charachter does not collide with walls So it gets out of the map i tried adding collision but didnt work
heres a video
robloxapp-20230326-1340516.wmv (28.8 KB)
its a roblox file just download it

It shows a microsecond of the video, so I can’t actually see the problem
Is there a script you have implemented into the wall that makes it non collidable with the character?

robloxapp-20230326-1340395.wmv (1.5 MB)
here is the real video and also no i did not make a sciprt

Have you used free models? Did you put collision off by accident with the walls? Because there is nothing else that could have caused it really