How to fix this three.js skyblock code?

Questions
1

This is my code:

MadDrFrank-s-Skyblock./v0.0.230 at main · DrFrankxio/MadDrFrank-s-Skyblock.

And the result gives the following problems:
-The player need to breaks a barrel or a sack for changing the item stored in it.
-The coords changing method for sack needs a prompt, instead of keyboards keys.

And no more, i think these are the only two problemms, i think. Can we solve it? Thanks anyway.