Hello, please tell me how do I disable or change the sound when using the item?

I meant the following: when you use an object (for example, you press the right mouse button on the compass and the server menu opens), a sound is made during the menu opening (i.e. immediately after clicking the mouse button)

Sorry for the late reply, I am not sure I understand.
Are you talking about command sounds or something else?

So, if you do not have a sound specified (commands-sound) on the item then you are talking about the plugin you are using for menus instead.

I am unsure what menu plugin you are using but most plugins allow you to disable or change the sound per-menu.

EDIT: Closing due to inactivity, a new official release of ItemJoin has just been approved.
You can now download it here; https://www.spigotmc.org/resources/itemjoin.12661/download?version=451699