phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6897fa5b52cb0c99fa53eb9b9ba6c6b3' 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 ('6897fa5b52cb0c99fa53eb9b9ba6c6b3', -1, 1765190057, 1765190057, 'd849d806', -2, 0, 0)

Line : 187
File : sessions.php