Please remove

[Khyrpa]

"Calls a function when two entites collide"
If you move as the player and hit any part of the chest, then it should trigger. But not on interaction. So you might be better off with:

SetEntityPlayerInteractCallback(string& asName, string& asCallback, bool abRemoveOnInteraction);
"Calls a function when the player interacts with a certain entity"
You can also set that inside the level editor with the entity properties.