It looks like this things mixed My posts.
If You need help read down👇
You need to do the archway puzzle second, sorry for My English, i'm mexican
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41523 thats the answer for the archway, then do the puzzle of the fountain (i already said how to do that)
Just turno it off and wait 10 - 15 seconds or maybe more
Then when You finally do the puzzles go with the statue and give her the things, and then Open the door.
(Now i'm trying to solve the puzzles with the potion) I Will post the answer when i pass it