When I try to mine mtp algorithm XZC with sgminer fancyix, I get the following error.

sgminer exited, waiting to cooldown a bit
sgminer: -c: Error: JSON decode of file "sgminer.conf" failed:
 '[' or '{' expected near end of file

How can you do mining? I do not know how to avoid the error.
It's like an error that has always been sgminer

If you can not use sgminer, you have to try another OS.