phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('56b8ae8186434ac2f4a3361ba7a2c728', -1, 1715306238, 1715306238, '340f80f3', 7, 0, 0)

Line : 189
File : sessions.php