How to withdraw Starknet token to Ethereum token?

I use starkgate and connect to Braavos and Metamask wallet, enter the amount, click Transfer button, it opens Braavos "Sign Transaction" window with the error message below the "Estimated Gas Fee":

Execution failed. Failure reason: 0x753235365f737562204f766572666c6f77 ('u256_sub Overflow').\nCairo…

Any idea?