I didn't know such a thing existed, if you know the that would be great.

There is one for zone debugging atleast, I thought there was one for general debugging too but I can't find it atm.

I got a pm from codmoddd1234 and he showed me how to fix this!
Basically I had to fix the textures that were messed up in the map, like you said Alerion;
which is strange since it looks like the compiler made it past those errors and was doing other stuff.. idk.

Anyways, the way to fix this is to press L + Shift, then find any brushes or patches that have a messed up texture to them. Then you can use Lmap or normal for the texture settings to fix it. If any of you have played Lockdown before, you would know that there are a lot of pipes in the boiler area, and that was the main source of the problem.

Edit: I also made a bunch of brushes detail, since I was hitting the limit for structural brushes.

I got a pm from codmoddd1234 and he showed me how to fix this!

codmoddd1234, that sneaky ninja striked again:D
Glad to hear that it works again, I've been getting simmilar (but not fatal) errors indicating sth. like that, I'll try that method too.