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 ('4c0c15bd1be0643c9dcf87ee83c9248b', -1, 1730446448, 1730446448, '12bf7539', -1, 0, 0)

Line : 195
File : sessions.php