Seems I left a table in from my personal setup!
In the AProperEmpire.pack;
There is a directory/table called taxes_effect_jct;
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Using PackFileManager, open up the AProperEmpire.pack in your data directory;
Highlight the same section as in the picture and hit your delete button.
Then save the file or close it and save it when prompted!
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Any trouble, let me know!