@lobogeorgie @MetaMaskSupport I've solved it. If you are not using RPC network as https://t.co/c1QFMIWguW , then I guess after you change it to the above, It will done.
@lobogeorgie @MetaMaskSupport when I try to transfer any tokens then displayed some error. I did same thing via Smartcontract directly, but same situation happened. I think this problem is by Polygon network.