I did something stupid on Monday. I've registered for a virtual participation and then changed its start time to a far future. After doing that, the Contests page is no longer available for me. It shows the "All Your Bug Are Belong To Me" page whenever I visit the Contests page. I think it is a bug of Codeforces and want my Contests page back. How can I remove that virtual registration then? Please give me help. Thanks for help.