The only problem I see is you're getting notifications and whatsup doesn't send a response, then server closes connection.
There's two things you can do about this:
1- Keep trying to connect. Eventually those notifications will stop and connection will get stable again (at least until you get more notifications).
2- Wait for the person that is working on whatsup to release an update. I don't know when this will be. Stop asking me about it, please.

NEVER TRY REMOVING ACCOUNT!

BTW: Whatsup is not based on yowsup, it's more like yappari.