Hmmm.
I fixed the pagination issue (it's not out yet; I'll probably release
it later tonight or tomorrow... it's getting late). It didn't seem to
be related to the favorite problem, but I'm not sure.
I can't get the error you're referring to. I have some other fixes in
place in my development environment, so it's possible those fixes have
already resolved the issue. I'll post back here when my changes go out
and get you to try and reproduce the problem.
What browser are you using?