please, always provide the link to the script, and the full error message (best in form of a screenshot, as sometimes people have mistyped important parts of the error message).
That said - 50% of all times when an error message similiar to the incomplete message you posted appears, it's because someone added scripts and then loaded an old savegame instead of starting a new game. A lot of scripts require the start of a new game after they have been added, because they need the new game functions to initialize themselves - and the message simply says that something had not been initialized...