Getting this: ElggObject () Created On Latest Activity What is it ???

I really need help please I am getting a MASS Load of Errors showing up on the Latest Activity Screen or River I guess it is...

 

Created 9 minutes ago by RapiChat.com
It says that above with Wire Posts and even posting photos and anything I think I post. Please help me thanks. My site is RapiChat.com can you please sign up and see it