Walkthroughs for custom maps.

Either I have a bug, or it's a flaw in the map. But the purple player didn't visit/couldn't enter the purple tent, and as a result, many things on the map didn't happen, and I've reached a dead end; I can't do anything else on the map. I'm waiting for a response from the author; maybe they can help.
Here's the save file, just in case; maybe someone here can see what can be done next.