It sounds simple, but a fresh IP assignment from your ISP can resolve routing errors.
Sites like 6868c.cc often maintain "mirrors" (alternative URLs like 6868d.cc or similar variations). If the main link is down, the community usually shares these backups via message boards. 5. Server-Side Maintenance 6868c.cc not working
Opening the site in a private window disables extensions. if it works here, one of your browser extensions (like an ad-blocker) is likely the culprit. It sounds simple, but a fresh IP assignment