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 ('3c1ff4ccb5c56f8eb3e0b9b6c37f818d', -1, 1717215953, 1717215953, '0d3b3d65', 1, 0, 0)

Line : 187
File : sessions.php