Quote Originally Posted by MiRai View Post
I may be wrong, as some other people were asking about this issue earlier this morning. I assumed JAMBA's issue was with realm names, which another add-on author had stated that the hotfix rolled out yesterday fixed it (for them). However, if people are still saying they have issues, then I don't know.
Seems like the Hotfix is what broke it so Jamba may need updated for it to start working. Here is what the TradeSkillMaster author tweeted yesterday:

We are aware of TSM throwing errors since the US maintenance this morning. Blizzard broke an API which TSM depends on. We are working on a fix as we speak.