phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4c71dd47d7adefbb693db25e537c996b' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('4c71dd47d7adefbb693db25e537c996b', -1, 1730388700, 1730388700, '12e03a21', -9, 0)

Line : 180
File : /www/includes/sessions.php