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 ('3978bc5b1209f14dfb691b611e2600fc', -1, 1715127800, 1715127800, '03865a2c', -11, 0, 0)

Line : 189
File : sessions.php