phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '8a37251de93e18ba1893c0d565dbd04f' 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 ('8a37251de93e18ba1893c0d565dbd04f', -1, 1771226583, 1771226583, 'd849d87a', -2, 0, 0)

Line : 187
File : sessions.php