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 ('e7f376e236e279ce2a8c1463b826cff2', -1, 1713870992, 1713870992, '340e7e4a', -2, 0, 0)

Line : 187
File : sessions.php