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 ('f57d31757f2d8f6b78e8d3e2d866e541', -1, 1579807147, 1579807147, '00000000', -7, 0)

Line : 152
File : /home/nlsb/public_html/forum/includes/sessions.php