phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('6b2538b76e62c6039b66aa3209367228', -1, 1713867340, 1713867340, '0380c758', 3, 0, 0)

Line : 187
File : sessions.php