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 ('ff5d77add9c9a7c70aa9051cd2ad53df', -1, 1714723755, 1714723755, '0d3bda93', 7, 0)

Line : 158
File : sessions.php