phpBB : Erreur critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6dd977d06aeb599cf5270420509e4ed0' 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 ('6dd977d06aeb599cf5270420509e4ed0', -1, 1784886010, 1784886010, 'd849d8b4', -10, 0, 0)

Line : 187
File : sessions.php