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 ('32132d05016f835c9b57052221bd9174', -1, 1620347844, 1620347844, '03eeeb9b', 13, 0, 0)

Line : 187
File : sessions.php