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 ('13f845f79ec7f8941896af3987246f54', -1, 1717264863, 1717264863, '031080f8', -9, 0, 0)

Line : 187
File : sessions.php