Doesnt work for me either .. same error. I thought I posted this in the download section where you had written about the changes you made Svart .. however I cant see it there now so ...
I get the inventory error as well .. and also if I use reloadui the entire client crashes.
For info .. you said you removed allinoneinventory and replaced it with myinventory .. well .. the download that I have does not reflect this change .. it only has allinone
Anyway .. if my other post shows up somewhere sorry for the double