Cannot Allocate the Server IP Port error

I am in a tight squeeze here. After getting Gmod to work on my other computer and not being able to play for 3 weeks-month. It has a problem again. Everytime I double click on a server tab (the thing you click on to connect to the server) the screen goes black, the game crashes, and the error pops up. It’s just small whitebox error you’d see in a Windows 98 error but it says “Cannot Allocate the Server IP Port”.

I know my system specs have nothing to do with this, I think it’s probably Steam since I tried to connect to a server on CS:S and the same thing happened.