phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c43a656872f8f79535b5926c7315f6c2' 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 ('c43a656872f8f79535b5926c7315f6c2', -1, 1770754054, 1770754054, 'd849d87a', 3, 0, 0)

Line : 187
File : sessions.php