phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd918a8ba6fea3a7031b7d07b93f2f3e3' 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 ('d918a8ba6fea3a7031b7d07b93f2f3e3', -1, 1770861723, 1770861723, 'd849d87a', 4, 0, 0)

Line : 187
File : sessions.php