phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '31679211f57eba77aa58d97463e3aa04' 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 ('31679211f57eba77aa58d97463e3aa04', -1, 1768979614, 1768979614, 'd849d87f', -9, 0, 0)

Line : 187
File : sessions.php