Client crashes on the sandbox server

Hey,

I've noticed that a lot of people have been crashing lately on the sandbox server.
If you'd like to help me out so I can trace this issue, please tell me what you were doing, and how the environment was right before you crashed? As much details as possible is appreciated!

Here's an example of what you could bring:
- I was talking in the chatbox.
- Server was being spammed.
- A lot of errors occured.
- I froze, and then my GMod crashed. <- What happened before it froze?

And so on.

Please help, so I can hopefully fix this!