This script have been posted in many forums, many user have tested it with different version, and they don't have that error.
Try posting the script in a new project, or use my other one (other script tested by other users).
If you still get the same error, get other version of the program, because the problem is not the script. You can check the code, there is not code like this:
if user == 'arisen' and text.include('J')
crash_game
end