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 ('afe78296ae45b4e098ed35b17cc0f675', -1, 1747675719, 1747675719, '12db57eb', 2, 0, 0)

Line : 190
File : sessions.php