In that case you'll need to contact IB and ask them to help you set up things correctly.i can't set up the paper trading account to trade or not futures...
i think the problem is due to account migration after brexit
already done.
they told me this is a known problem and they try to solve it.
i wanted to know if other clients have the same problem
I have the same problem on my new paper account. My old paper account was not migrated, so I had to create a new one and this error appears when I wanted to buy futures.