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 ('bbd5a2b66c3f816f094455326f01a5f9', -1, 1749336001, 1749336001, 'd849d8f5', 2, 0, 0)

Line : 190
File : sessions.php