Vampire Info is using the outdated/non fucntional LibAddonMenu-1.
I'll try to build a new version with LAM2 and see if this works, or if anything else like the buff tracking is broken.
Edit:
After chaning a bit it seems that the buff tracking works but the settings need a total redo...
At least it tells me my non vampire is no vampire :-)
Please try if this works for you:
VampireInfo v2 Baertram