Yeah, fake carts have issues dumping their saves, because their saves are actually nested in their ROMs (it is not in the save partition that tools try to dump from)
You gotta dump the ROM and try to extract it, can try using this to scan the ROM file for the save.
Do note that you won't be able to inject any save back into the bootleg cart.
Note: Kind reminder to not upload the ROM here. Uploading of ROMs, among other things that relate to piracy, is against our rules. Cheers :3