After reading your question on Paltalk, I was curious as to what it was.
I looking it up to find that it is a videoconferencing software.
After reading the reviews on it, I know for a fact I am totally not interested it learning any more about it. Any software with that poor of record of fixing problems is not something I want to mess with.
wow, let me come at it this way
safari (browser has one cache)
paltalk (check this link out to confirm) http://www.paltalk.com has a lot of options.
is it safe to assume you are signed on via the internet only or are you using a client interface like paltalk express
or something along those line.
if it is you could clean your safari caches, history etc.... and still have an issue due to the client being filled up
and you would have to look at settings on that side as well
Have you contacted Pal Talk for advice?
You might try looking in Home/Library/Caches to see if any of the Pal Talk caches are there - which is where they should be - and delete them.
Also, set you Safari cache Database Storage) to zero in Safari Preferences/Security.