You've spent the Bitcoin Cash without moving the real Bitcoin on
October 30, 2017. Any chance you still have the private key imported into a BCH wallet you have forgotten about?
I had no business with Bitcoin cache, maybe they sent it from my wallet, as if I did not know, I need to look at the hard drive.
Who is "they"?
Someone sent Bitcoin Cash from your address, and if you didn't do that, it means someone else has access to the wallet you claim is yours while you can't access it.
It's not only the BCH but BSV too >
https://blockchair.com/bitcoin-sv/address/1GRth6rP4uaPXdw2T6HcGmi7f1RzW4xV94Same date.
Seems strange to not have control over the address, but have accessed it earlier. The whole story start to be a bit fishy.
@OP I know the language barrier can make a lot of confusions. If you are using some kind of translation software like google translate, use a short and clear sentences, it will be a more accurate translation and it will be easier for us to understand.