Seller shipping label error

Hello! I have purchased a pair of shoes about three days ago and seller sent me this message ^ I happily purchased again a bit later once I saw what had happened but the seller is still having trouble accessing the label and I really want these shoes.

Has this happened to anyone else? And if so what was done to fix the issue? Tysm! Wanted to know if maybe it was a problem on my end or a possible glitch

Thanks in advance!