System menu missing

I am using Kodi (jarvis) on fire stick, I have just reloaded everything and am setting it back up the way I had it before. I am using aeon nox skin but my system menu had gone missing. I was setting up short cut menus when it happened. The only difference from this time and last time is I added an extra menu. When I backed out to make sure everything was working, “system” was gone. Could anyone help me please?