Cell Strainer Wokring?

Hello dear development team,

I’m trying to use the Cell Strainer tool to investigate the origin of one of my cell lines (allegedly the Ewing sarcoma cell line ES-1, but sequencing data shows it is something else).

I filled everything according to the guidelines, and tried the example MCF7 cell line file to make sure that the problem is not with my own .seg file. The analysis keeps on failing (I get the following error):

Any idea what can I do to solve the matter?

Thank you.