Predict functional potential error null

Hi There,

I get an error message, please see screenshot, when I try to do predict functional potential.
My counts file are in absolute values.
Please find attached the files I am using.

Thank you very much in advance, Paula.
metadataBin.txt (1.2 KB)
OTUbinTotal .csv (295.1 KB)
taxonomyBin.csv (351.6 KB)
I used SIlva