404 for forums page

I have a link to the forums page; it is:

http://www.c-sharpcorner.com/Forums

I am getting a 404 for that page. The link to the forums from the home page is:

https://www.c-sharpcorner.com/forums

And that works. The only difference is case for the "f" in forums.

If that only affects me then there is no problem.