Cannot upload my eps-file

I’d like to upload a eps-file but the system check says my zip does not contain a eps-file safed for version 10 or earlier but it does. I work on Illustrator CC2021 and saved the file as eps for CS4 all paths closed, no hidden stuff, no locked layers. My Zip-Client is Ashampoo. It’s my first upload so probably I’m doing wrong can anyone help me, please?

hi as for i know illustrator 10 and cs4 are not the same , cs4 is by far ulterior to this prehistorical illustrator 10 version that they ask for and which makes very little sense. For me, if i could understand well this is the problem that u are facing indeed … (besides, u can rest assured, this illustrator 10 is a big problem maker for a lot of people)