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 ('cfc9b7a99fef2490717f9c6b6a5520a6', -1, 1717166968, 1717166968, '0390977e', -4, 0, 0)

Line : 187
File : sessions.php