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) VALUES ('b3cb02d1e7be5c80aeb3504bf14e46f8', -1, 1714345211, 1714345211, '0390c181', 20, 0)

Line : 158
File : sessions.php