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 ('256a6810d4e82c3ee51f57f3bf832724', -1, 1714757903, 1714757903, '127548e0', 17, 0)

Line : 158
File : sessions.php