The error occurs after the list has been loaded from neocodex, when visiting a shop for the first time.
I do have the 'sticky fingers' 5% discount obelisk boon, would this cause it?
Traceback (most recent call last):
File "/cdx/svn/checkout/core/trunk/Program Manager/ProgramManager.py", line 1192, in run_with_except_hook
File "Programs/1001/Abrosia.py.nc", line 760, in run
File "Programs/1001/Abrosia.py.nc", line 1082, in processNextTaskItem
ValueError: invalid literal for int() with base 10: ''