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 ('a06a70ca792df92e09489483b3fe4f6a', -1, 1715026797, 1715026797, '12dc89a4', -9, 0, 0)

Line : 189
File : sessions.php