Mod Error

[77row]

Hey I'm new here, and I am trying to make a new mod. I am only skinning in this mod since I'm not good with anything else. The problem is there is an error that I don't know how to fix.


It looks like it has something to do with the artillery but I have never touched the artillery. I know its the mod because when I run it this error happens.

What I'm asking is that someone knows how to fix this error. Or if someone can give me a mod template or something. Like it has all the components of a mod but nothing is changed, I can do the mod.info though.