Since early today, I've been getting this error when I try to add players in a test server:
SendData: BitStream string write: String too long: 218178
The player then is not added. What causes this? I don't know what I did to cause it. Additionally, I uploaded the place, and it doesn't seem to be an issue there; I can connect to it fine.
I believe this is caused by too-large CSG objects. Try making your objects less complicated.
I don't know if it actually reduces complexity, but it might be possible to just make two copies of an object, and then cut it in half, using each half instead of the whole thing.