phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c2f325f3c5ba53bf4a94f8b9b51c688e', -1, 1737555118, 1737555118, '03912878', -9, 0, 0)

Line : 187
File : sessions.php