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 ('f349b852c7877b4873173141d1d32f43', -1, 1730969377, 1730969377, '2cdcff8d', 29, 0, 0)

Line : 195
File : sessions.php