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 ('aa6b874614cc19d3ee9a0c049865fe8e', -1, 1730420062, 1730420062, '340e4d86', -1280, 0, 0)

Line : 195
File : sessions.php