First char to log in is fine. Switching to another char gives LUA errors in Broker_currency.lua:

always:
line 265: attempt to index local 'left4' (a nil value)

one of these (depends on which char is logged in first):
line 352: attempt to index local 'playerInfo' (a nil value)
line 376: attempt to compare nil with number

I've create #13 which fixes the issue for me.

I accidentally reinstalled the latest version and I got the errors on load and reload. Going back to working version.

Tried reloading the UI numerous times; it doesn't work for everyone. Eventually the addon hits a point where it just shows gold and then starts blanking out the information.

It's not just entirely switching characters -- logging back in as the same character also triggers it.

Oh, and reloading the UI once you're logged in will eventually make it stop erroring.