I've looked all over the forums and searched support but can't find an answer anywhere.
Earlier today, out of nowhere, the menu on my website that lists the categories started sending people to url/undefined, which of course leads to a 404 page.
I have deactivated all plug ins, and nothing happened. I recreated the menu with new categories and same thing.
The category links work on the 404 page, or on a single post page, but the menu links don't.
If I'm looking at url.com/sample-post1 then click a category in the menu, it leads to url.com/sample-post1/undefined
Anyone able to help me? I cannot find the problem or an answer anywhere.
you can see the problem on my site http://veryawesomevideos.com
Thank you for any help in advance