Helpclient boken, can some one help?

i get this when i try and play:
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at _-1Xf::_-17S$/_-w5()
at _-1Xf::_-17S/_-fz()
at _-1Xf::_-17S/apply()
at com.company.assembleegameclient.appengine::SavedCh aracter()
at com.company.assembleegameclient.appengine::_-dV/_-1Bo()
at com.company.assembleegameclient.appengine::_-dV()
at _-0EK::_-13q/execute()
at _-0JY::_-1bI/_-0Zg()
at MethodInfo-11()
at _-Ct::Slot/execute()
at _-Ct::_-1Wm/dispatch()
at _-1E7::_-14J/_-14B()
at _-1E7::_-14J/onComplete()
at _-Ct::Slot/execute()
at _-Ct::_-1Wm/dispatch()
at _-58::_-Ks/_-1Jz()
at _-58::_-Ks/_-EE()
at _-58::_-Ks/onComplete()
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at flash.net::URLLoader/onComplete()
and i click dismiss and it gos to an infinite loading page, any help would be greatly appreciated.

---------- Post added at 09:52 PM ---------- Previous post was at 09:34 PM ----------

To fix this make sure one of ur pets DOES NOT have one of the new abilities

Well for starters, Client Broken*

I have the same problem, It just started when 13.3 came out. I can log on without a client and I have downloaded many different clients and they all fail.

.... As it has been said a million times by now, log into the website and unfollow your pet. You can't have a pet with new abilities because all the clients out there are an old version made to work with 13.3 (ie hexed).