I found the problem. In one card entry the cell for "Graded" was blank.
I put in "Y" because I had the other cells filled in with PSA, grade #,
and certificate number. Once I did that it all go uploaded. Crazy!!
I'm actually brand new to this, but am having the same issue. I did a
small test upload on 2/17/24 and it worked just fine. Then on the I
think it was the 2/22/24 I went to upload around 300 cards and it didn't
work. I received the same error message...
