BFGMiner -> trgval? no (false positive; hash > target)

[flasht]

I am keeping getting something like this all the time:

[2019-08-09 14:22:48] GPU 0 found something?
[2019-08-09 14:22:48] OCL NONCE 239674609 found in slot 0
[2019-08-09 14:22:48]  Proof: 00000000bceaad0068f64ee56ac53d143508752e1f9f9f9754ba1c17be9084ca
Target: 0000000000068db8baffffffffffffffffffffffffffffffffffffffffffffff
TrgVal? no (false positive; hash > target)

What does it mean? How do I fix it? Searched on the internet, but no one has any clue.

It m8 have something to do with scrypt mining instead of sha256, and that ckpool supports only bitcoins. I am totally new in this, so could anybody please explain me how do I change that? there is no "--sha256" option.

[BitMaxz]

Are you mining with your PC?

According to your logs, it looks like the miner found zero GPUs means no graphics card detected in your PC. Sorry but this is not the right place to ask this but I'll try to report it to moderators to move this on altcoin mining instead.

If you are planning to mine Bitcoin you need ASIC machine to mine bitcoin like antminer s9, Whatsminer or Avalonminer.

[flasht]

In fact it did detect my GPU and gave it id 0. Why can't I mine Bitcoins with my GPU? GamerHash for example does that? Or doesn't?