Hello, i am running a carbon server and am getting this error in my console. How can i fix this error?

Failed to call internal hook 'OnEntityKill' on plugin 'SpawnModularCar v5.3.0' [304634108] (Object reference not set to an instance of an object)
at bool Oxide.Plugins.SpawnModularCar.IsPlayerCar(ModularCar car) in /home/container/carbon/plugins/SpawnModularCar.cs:line 1948
at void Oxide.Plugins.SpawnModularCar.OnEntityKill(ModularCar car) in /home/container/carbon/plugins/SpawnModularCar.cs:line 169
at object Oxide.Plugins.SpawnModularCar.InternalCallHook(uint hook, object[] args) in SpawnModularCar.cs/Internal:line 297