You should try and dispute that with Paypal.
When involving cryptos, paypal always sides with the one who sends/reverses the payment. Opening a dispute won't help much, as PayPal got things like this covered in their TOS.
There is a reason why we got a sticky thread in the currency exchange forum saying "
Beware of PayPal [...]"
Not always, mostly when a unauthorized claim is made. Don't forget their digital goods policy which is why I actually recommend escrow for legit members who are not using a VPN / proxy, hacked or stealth account and using PayPal funds.