Hello i try to save Edit Page option.

its make error on main page but other all sections are working fine.
The page isn?t redirecting properly
Firefox has detected that the server is redirecting the request for this address in a way that will never complete.
This problem can sometimes be caused by disabling or refusing to accept cookies.
please help how to solve it?
--------------- Added [DATE]1530874584[/DATE] at [TIME]1530874584[/TIME] ---------------
I overwrite about 2/3 times so my main forum link not working anymore.
other all sections links are working fine,
but main page not working.
who can help?