Cause of the error was found. Rim code in use described in the vehicle data were not correspond with the description of the RIM tables available on the vehicle.
Is this a bug originally had been left in the database, or intentionally whether such value has been set? I do not know for now.
Anyway, you can correct the data in the following procedure.
0. Load "Lambo Countach 5000QV" data.
1. On the tab page "Tire/Rims", click rim code in "Tire-Rim combination code list". Row in the list will be selected.
2. Click "Rimove" button. After that,
3. Click "Add" button. "TireDBViewer" will be opened. On TireDBViewer,
4. Click "code" column hedder. Cell will be sorted by code.
5. Find code "158", and click it to select the code.
6. Click "Add this combination" button. Code 158 will be registerd in db_data as Rim in use. You can close "TireDBViewer" now.
7. Please remenber to click "APPLY" button at the last.