phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '61a42c52f508be0c50e26e7a283443d3' for key 1

INSERT INTO zzphpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('61a42c52f508be0c50e26e7a283443d3', -1, 1220621456, 1220621456, '26673f3b', -12, 0, 0)

Line : 189
File : sessions.php