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 ('7bb1663c75df99a40947a3bf786dbf4b', -1, 1717425663, 1717425663, '0391b173', 1, 0, 0)

Line : 187
File : sessions.php