Good day! I'll try to make me understand. It would be difficult to even check this in my language.

There is a menu item in "main menu" is called "Preguntanos". When clicked, the page title always said "easydiscuss frontpage".
I tried to change the title of the page from this menu item, but nothing was changed.
I found that I had created a "hiden menu," which had an item called "easydiscuss frontpage" then I changed its name to "Preguntanos" and put another alias. Thus I got the name of the page now it says "Preguntanos".

I wonder why there must be a hidden menu that is pointing in my mainmenu.

Attached are some pictures. I hope you understand me. Any concerns do not hesitate to contact me.
Thank you.