phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4838bcaab87f109cd2dd997ac76c6b67' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4838bcaab87f109cd2dd997ac76c6b67', -1, 1769442009, 1769442009, 'd849d869', 4, 0, 0)

Line : 187
File : sessions.php