Common errors for trading on Bancor v3
BancorNetworkcontract requires token approval to access the user's wallet and execute the transaction. Without an "Approve"/"Allowance" in place, the transaction will not be able to proceed. Read more on how to trigger "Approve"/"Allowance"
This indicates if the token is not available to be traded on Bancor V3.
This indicates that the deadline is set to a time that has already passed. Fix this by changing the value to a future time.