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 ('c40d36d42c22cfab2f2f80f0b4989da3', -1, 1717088770, 1717088770, '12bc5b2c', 1, 0, 0)

Line : 187
File : sessions.php