Factorio 0.17.32
Vehicle turrets 0.1.13

Here is the error report:

Error while running event Vehicle-turrets::on_tick (ID 0)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
    __Vehicle-turrets__/turrets.lua:189: in function 'destroyTurrets'
    __Vehicle-turrets__/vehicles.lua:18: in function 'updateVehicles'
    __Vehicle-turrets__/control.lua:40: in function <__Vehicle-turrets__/control.lua:39>
stack traceback:
    [C]: in function '__index'
    __Vehicle-turrets__/turrets.lua:189: in function 'destroyTurrets'
    __Vehicle-turrets__/vehicles.lua:18: in function 'updateVehicles'
    __Vehicle-turrets__/control.lua:40: in function <__Vehicle-turrets__/control.lua:39>

I cannot reproduce this error. Did you use any other mods? Was it a multiplayer game?

If you can give me details on when and how it happened, I will have an easier time to fix it.

Thanks for the help =)