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 ('bc065dff2148f31f06d7f7742db6c8fe', -1, 1750236262, 1750236262, 'd849d850', -9, 0, 0)

Line : 190
File : sessions.php