I can open and edit addondata/config/balancing/addon_01_quests.xml and setup the GUI to generate a new db as below:

As soon as I hit generate it just closes.
This error is shown:
AnnoRDA.FileFormatException: Input file or data stream does not conform to the expected file format specification: Invalid value in header at offset 0.
I can open and edit addondata/config/balancing/addon_01_quests.xml and setup the GUI to generate a new db as below:

As soon as I hit generate it just closes.
This error is shown:
AnnoRDA.FileFormatException: Input file or data stream does not conform to the expected file format specification: Invalid value in header at offset 0.