Paltalk

It seems that any changes you make to Paltalk.exe, even just unpacking it, and it then lets you sign in, but once in it wont list the chatrooms unless you hit the refresh button a couple of times, then when you click on a group, it works for a few seconds, then the audio and text stops working, but it doesn't give you any error messages, so it really doesn't give you much idea what strings to look for in your debugger, it also doesn't seem to like to run for long in Olly Debug.
What logical reason can their be for a program not functioning, just because it has been unpacked?