From https://confluence.status.atlassian.com/ Confluence is operational. From your screenshot I can see that you don't have the access to the Confluence product at all. Check with your admin if they have assign you the Confluence license for your site.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.