phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '877867717a676979b45384a2d8d9d526' 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 ('877867717a676979b45384a2d8d9d526', -1, 1767603810, 1767603810, 'd849d89f', 6, 0, 0)

Line : 187
File : sessions.php