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 ('2991d36bf80ec80b4c071e2735a3cc2f', -1, 1717367113, 1717367113, '12dcb399', -4, 0, 0)

Line : 187
File : sessions.php