ryepdx.github.io not working anymore, can we access it somehow?

Hi,
3-4 years ago I created a paper wallet on http://ryepdx.com/ethaddress.org/#/ with a password for an encrypted private key. I have a QR code from them, but which is seemingly for the encrypted key...it worked decrypting it on their site, but...
It seems a mistake that I encrypted, I should have had a copy of the actual private key, because nowadays this site is not working at all in order to decrypt it...Can I access somehow the private key without accessing that site or I'm stuck? ...Fortunately (enough) I let only a smaller amount in that wallet...
Thanks!