[ZOS_DanBatson]

The setting to control it is in the AddOn settings menu. By default it's simple mode, but simple mode does not make no errors show up. If you're experiencing that, I suspect something else would be causing that experience. Only addon devs or particularly Lua-savvy users should conceivably get any real benefit from advanced errors, and thus the setting lives where addon settings live.

The big change with the new simple mode is that it will not show you more than one error at a time (so when you dismiss, you dismiss any and all errors that had occured) and you can suppress to make sure you don't see errors again, allowing you to get past otherwise innocuous erros locking you down from an update loop.