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 ('e2ffc8ec7c2ddb3c3c5f748166d1e8a2', -1, 1717312314, 1717312314, '03134b85', -4, 0, 0)

Line : 187
File : sessions.php