ZN DEC 23 CBOT , can't send my order  [SOLVED]

MultiCharts .NET64 Version 14.0 Release (Build 25220)
IB Gateway Build 10.25.1n

I can't send an order.

got folllowing message.

Parameters in request conflicts with contract parameters received by contract id: requested expiry 20231220, in contract 20231219;
Instrument: ZN DEC 23; Order: Buy Limit 1; Status: Rejected

Any changes?

I tried deleting the old Symbol and also deleted the Symbol mapping, but no change.

Hello eunos64,

This error message might appear if the symbol parameters are not correct.
Please make sure you follow this instruction:

1. Close all charts with the problematic symbol.
2. Re-add the instrument with which you have the issue from the data source according to this guide.
3. Go to File -> Broker profiles -> Symbol mapping -> IB -> Remove the line with the problematic symbol and add a new one if necessary using this instruction.

You might also need to clear the IB cache where the incorrect settings might have been saved. Here is how to do that.

Solved.
This might needs to clear the IB cache.

Thank you!