I need to make the transfer from the user token to the receiver token.
#1
// Transfer the token to the contract owner
msg.sender.transfer(VIP_TICKET_PRICE * quantity); // Do I have to make the msg.sender payable?
#2
// Transfer the token to the new owner
safeTransferFrom(msg.sender, _to, _tokenId, 1, “”); // safeTransferFrom does not exist