It seems like it installed fine. For now lets just
remove it from that addon tab and reinstall. Also remove any custom keymaps you made for it. Restart Blender and install it again and it should just work with
; by default you do not have to do anything for it. If it does not, it is possible another keymapping is using
If it still does not work, you can assign it to another key by using the settings in the image. Just enter those text values and pick a shortcut.
Also in the Keymap editor instead of
Key-Binding (top left) and then search for
; That will show you all the tools that use