Error! Posible causes of error (last one being the most relevant)

Hello,
I got a message when uploading my data to Microbiome Analyst. I was trying to use the Marker Data profiling tool. In the section of Analysis Overview, I could not click proceed in the section: Single-factor analysis. And appear the following message :
Error! Posible causes of error (last one being the most relevant)
But I can click on any other section, just get the error in this section.
This happened with the following data:
KO.otus.csv (69.5 KB)
KOmeta.txt (116 Bytes)