Order not showing in Vendor Dashboard

Some orders are not showing at the vendor dashboard on the orders tab.

I check on the logs, its returning:
2020-07-23T19:41:29+00:00 DEBUG Order List Error ::6831 => Invalid order item.

This error keep repeating for some orders, aparently are the same orders that are not showing in vendor dashboard.

whats happening? whats this error about? how to solve?

Thanks.