Board Thread:Support Requests - Getting Technical/@comment-30311333-20161101123937

I have been having some troubles editing my wiki navigation bar, no matter what I try to do, when I edit the wiki navigation I always get this error message: "Oops, your Level 2 menu is too wide. Please shorten the menu to fit." And of course I can't save the changes. I have already read the help page about this topic but I can't understand why this happens. The message even appears when I try to preview the default code or if I clean the page completely and there is only visible the tap "On the wiki".

Someone could explain me what could be the trouble and how could I fix it? Thanks a lot for the help. 