phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('8c4a22162c7679cf4ebcf6751e6b3998', -1, 1717088800, 1717088800, '12bc5b2c', -10, 0, 0)

Line : 187
File : sessions.php