What happened with site?

Good day! Today every time i try to watch mods or something else, my account crashes. When i open “my mods” or “search mods”, site tell me “please sign in”, but i did it so many times before with my X-box account. But if i can to sign in, my mods show me the plate: "Sorry, no results.

Please try again with other paramaters" I don’t know what to do. Help, please.