SPOILERS || Quest support

[Virida]

I'm on the "You’ve received an invitation from Roy Shade to visit the Shady Caverns. Maybe today’s a good day to go?" quest and i got to the part with the keypad
I've never been good at these kinds of puzzles, and was wondering if anyone had any advice for it.
The keypad currently looks like this for me
1  2  3  4
5  6  7  8
10 9 13 12
14    15 11

If it still looks the way you posted the solution is
11 - 15 - 9 - 10 - 14 - 9- 15- 11- 12 - 13 - 11 - 15 - 9 - 14 - 10 - 11 - 13 - 12 - 15 - 13 - 11 -10 - 14 - 9 - 13 - 15 - 12 - 11 - 10 - 14 - 9 - 13 - 14 - 10 -11 - 12