phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6c3e19befb1784d132d7a5bad31f3c3f' 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 ('6c3e19befb1784d132d7a5bad31f3c3f', -1, 1766139503, 1766139503, 'd849d89f', 5, 0, 0)

Line : 187
File : sessions.php