Camera/Collision/BSP Volumes - Help!

Hello! I have my level with semi-full bsp volumes and follow some tutorials to do this on the topic title (camera collision with BSP Volumes). I already add the blocking volumes (where the character can’t cross walls, etc) and blocking camera volume. Do also a lag on camera spring and much more to make it work but doesn’t. The camera continues crossing the walls, doors.
How can I fix it?
Please, need help! =/

Is this on the third person template?

Yes. I don’t use this anymore, but if you know how to fix it, I apreciated it. =)