Confusing Error

So I’m makin a football and I’ve ran into a problem. I keep on getting this error but I’m confused what this error means nor how to fix it.

Screenshots:

The error happens on line 23, as seen in the error. All the error is trying to say is that you’re trying to substract a Vector3 value from an Instance (object)

An example of what’s causing this error could be something like trying to subtract a position from a part:

local Variable = Vector3.new(3, 3, 3) - workspace.Part