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 ('050b4e8527581fce03a31e8e4a405cb9', -1, 1713563445, 1713563445, '03804e29', -4, 0, 0)

Line : 187
File : sessions.php