I can't signed it.
You might as well forget the whole recovery process.
I have only use this bch address (1QGeoYzffMupdjhtCmiJ8jR6p4ic9DjMfH) and it's a coinbase wallet address.
How about the following
BTCitcoin addresses (can you sign with any of the following addresses)?
I have just tried your faucet. It's very easy to get the free btc on your faucet. There is no captcha/human verification for get the reward and there is not any pop up ads in the faucet. That's really good.
My bitcoin address::
18VHbGyCVf12pwiJrfqn4mFVPWTmmbpgp7
Mahdirakib
1PjqxmgKMdvvNAASSm7JqQ1hocBg9P5Bpo