phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('1487f6d195d5f919a70c8b4e3af75fed', -1, 1737483863, 1737483863, '12779e8e', -9, 0, 0)

Line : 187
File : sessions.php