used only the the "only show these vehicles box with only scorpionrover in the box.

The mod Car/Tank/Spidertron Locator Button (2.0.0) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event car-finder::on_lua_shortcut (ID 42)
Unknown entity name: scorpionrover
stack traceback:
    [C]: in function 'find_entities_filtered'
    __car-finder__/control.lua:84: in function 'find_vehicle_infos'
    __car-finder__/control.lua:149: in function 'print_all_vehicles'
    __car-finder__/control.lua:190: in function 'activate_car_finder'
    __car-finder__/control.lua:200: in function <__car-finder__/control.lua:198>

"find_entities_filtered" is a game API throwing this error. Either install whatever mod creates scorpionrover, or remove scorpionrover from that mod config, to resolve this error