Network Error - Invalid Argument

[kuetabby]

after switching the network there's an error

Uncaught (in promise) Error: could not detect network (chainId="0x0x38", event="invalidNetwork", serverError={"reason":"invalid BigNumber string","code":"INVALID_ARGUMENT","argument":"value","value":"0x0x38"}, code=NETWORK_ERROR, version=providers/5.7.2)

is that a bug or something i dont know ?