MF: Base Error

A error occurred while executing a script and was caught to prevent a crash.
Please report this error to the mod author.

Mobile_Factory_zoms/utils/functions.lua:213: attempt to index field '?' (a nil value)

You can still continue but this is not safe and may create some strange behaviors.
Please keep a save before this error as a backup.

Hi,

I am getting the following error while using Mobile Factory Zoms:

Mobile_Factory_zoms/utils/functions.lua:213: attempt to index field '?' (a nil value)

The game catches the error and continues running, but the warning appears repeatedly. I thought I'd report it in case it helps track down the issue.

Thanks.