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Since you didn't post the files and didn't give any specifics, I can only respond "something's wrong."
I think we would need to see the setlist file and the carddata file - if I can help in any way PM me. Cheers.
The plugininfo.txt too, just to make sure it agrees with the data format of the card data files. All a plugin is, is pretty much plugininfo.txt, setlist.txt (which can contain as little as 2 words), and one or more card data files (which are essentially spreadsheets of card data).