Sent RBTC to POA Network instead of RSK on NIFTY Wallet

I sent RBTC to the POA network address on my Nifty wallet instead of the RSK network. Is there any way to retrieve the lost RBTC? Thank you!

If you have access to that POA network address, then yes. Connect to POA Network, export private key of that address. Connect to RSK chain and import address from that private key.