I dont know Lui but from the forum it seems the bag-module is not finished.
Perhaps it helps to disable the module.
Code:
goto /lui > general > modules > and disable bags (the writing will turn red) then close menu and /rl. be sure to have a bag addon installed and ready to go
Code:
Or you could just use the in game bags still too. The bags module isn't complete yet, so it is still a work in progress.