As you can see, this function (+trigger) has two objects. One is a hero. The second is an object that, when touched by the hero, starts the function.
Although, yes, since the function is called, the object must exist. The question is resolved.

I don't even know how to help. I checked it in the script editor - the syntax is correct.

Once again (for clarification). You started the map from the beginning. You approached the object with the hero. You clicked. The function failed. Is that correct? I just don't know how an error could occur in such a simple function.