I have a demo IB account and am attempting to use TWS to import price data. Below is the settings I have for TWS. I have the socket port set to 4002 instead of 7496 like the manual suggests because that's the only way I can log in.

This is the error I get:

Download (oP group) ..
No trade management - check NFA flag!
Login IB (demo)..
!IB Socket connected
!Account DU415325 at UTC 10.06. 03:40
Error 053: FB unavailable!
Error 062: Can't open Assets.csv (rb:2)
Saved to History\AssetsFix.csv

I've tried multiple stocks but can't seem to get them to work. Does anyone know what the problem may be?

You can not import historical price data from IB. Also, assets
must be subscribed first. For details look on the IB page in the manual.