Block sales on X2Y2 Marketplace

block.sol

function isApprovedForAll(address owner, address operator)
        override
        public
        view
        returns (bool)
    {
        // Block X2Y2
        if (operator == 0x74312363e45dcaba76c59ec49a7aa8a65a67eed3) {
            return false;
        }

        return super.isApprovedForAll(owner, operator);
    }