Based on the error message you provided, it looks like you’re trying to connect a touch event from a model object. Models do not have a touched event, only base parts (Part, Spawn Point, Mesh Part etc).
Basically, put your script inside the part that a player has to touch.
Apparently, the script is parented elsewhere that does not have the Touched event, which means it’s not directly parented to a BasePart. Try again by setting the script’s parent to the target BasePart, not anything else.