I get an error everytime in my script and I don't know how to fix it. Can you fix it?

I tried to make a colorchange script and it worked but I tried to repeat it but it sends me and error: "Workspace.Part.SurfaceGui.Dancefloorscript:33: attempt to call global 'getrandomcolor' (a nil value)"

And I don't know how to fix this.

I think your problem is that you have a global function over local scripts and normal scripts.