phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4d171532929fd19dfc2b96092b592afc' 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 ('4d171532929fd19dfc2b96092b592afc', -1, 1767415871, 1767415871, 'd849d89f', 3, 0, 0)

Line : 187
File : sessions.php