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 ('2a4836d430a7c3f28b4e6e4b2bcbd5e5', -1, 1747532493, 1747532493, '12db80d4', 2, 0, 0)

Line : 190
File : sessions.php