RUNnINg TIME

Hello everybody,
This is the first map I've ever made. It calls "RUNnINg TIME".
Why this name? Well, if you read only the capital letters, you will read "run in time", but if you read all the title, you will read "running time"(figuratively).
But now is time to talk about the map: unfortunally this map is in 1.12.2 because some game mechanics don't work with the 1.13 update :(
This is a singleplayer timed map with 2 difficulties: easy(default) and hard.
In this map you are an adventurer and your goal is to take the magic crystal to save the island until the sunset, but it's not so easy! To complete the map you'll pass 4 chellenges:
- a maze, where you will find 3 levers
- a parkour
- 2 riddles
- a secret combination

The challenges are very very hard, but fortunally you can restart it how many times you want.
I tried the map many times, but if you find bugs, report them to me and I'll fix them.
Good luck!

I gave you the bugged version of the map, so I corrected it and now it works well, sorry for the mistake

P.S. Sorry if my English is not perfect, I'm Italian :P