A few people on reddit claim they had success making transfers to crypto wallets. For many others like myself, we get an error if we try. If it worked for you, how long ago was it?
It's a shame cause this would be one of the easiest and cheapest ways to buy crypto, if only it worked. Alas, Paypal is a comically bad company.
What kind of error though? have you tried reaching out to the support? According to this article[1] It's only possible to withdraw to external wallets after going through an additional level of account verification (I'm guessing KYC). Have you done that?