secret note 19

Hi, I am playing Stardew on my Switch and I was trying to complete Secret Note #19, but when I got to where I am supposed to be, nothing I have tried works to get the item. I have tried my pickax, ax, sword, pressing A, B, Y, and X, and the right joycon stick, nothing happens. I have walked that...

I am playing on IOS, iPad Pro, game updated to v.1.4 and in year 6 of the game, community centre restored and added. I am trying to solve secret note 19 and understand from the wiki that I should end up . Then it says to right click... what are we meant to do on mobile? I’ve tried various tools...