Another error "Unknown error while generating motion and please place all markers on the character"

Hi !!

I´m trying to upload my model on Mixamo but when the auto rig launches, it gives me that errors. The markers are well positioned on my model. I tried fixing my model following some comments on other posts but I didn´t have any luck. For example I fixed some borders issues.

If someone has an idea please share it! I will be very grateful!

Thanks!