How to "fail safe" a script in the event something errors?

Well the failsave is the built in pcall function which wraps everything inside it in a protected bit of code. If the code inside it errors it will return two thinks, a success value (boolean) and a error message(string) and if it is successful, it runs and returns a success value.

local success, Error = pcall(function()
	pprint("test")--errors
end)

if success then 
	print("yay",Error)--"yay",  false
else
	print(Error)
end