phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c8115d151bb9de6f69abe9e7606c575a' 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 ('c8115d151bb9de6f69abe9e7606c575a', -1, 1765893648, 1765893648, 'd849d89e', -9, 0, 0)

Line : 187
File : sessions.php