I had transferred my Poloniex dogecoin cryptocurrency and accidentally sent it to a Bitcoin paperwallet using walletgenerator.net. It did go somewhere but do not know where. Is there someone to contact for missing cryptos? I thought the Dogecoin address is different than the bitcoin and would not transfer.
Even though the address format is different (the prefix part) the transaction is valid so there will be a transaction on Dogecoin blockchain to the address.
I found a reddit thread where they suggest to save your private key in the Bitcoin client and import it to your Dogecoin client, although it is not certain this will work, I think this is your best chance, as transactions are irreversible by design.
In the original Bitcoin Core client you export in the debug window (based on this and this):
click on 'help' in the menu bar (top right)
click on 'debug window'
select the 'console' tab type:
walletpassphrase "passphrase here" 600
dumpprivkey [address here]
Then to import navigate to the same window in Dogecoin client and
importprivkey [private key here]