When I try to add a vehicle I get this message
even try to view already existing vehicle I get this message.
How can this be fixed
In Joomla Vehicles
you have possibility translate "features category" and "car features" to other languages, so we create Language constant for all "Features"
Please go to admin Vehicles::Features, and there add New "features category", after: press "Save category" and recheck error.
After remove you may remove this "features category"