phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '855333e2bf8a7838f8fcfc67601fc7f0' 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 ('855333e2bf8a7838f8fcfc67601fc7f0', -1, 1762589391, 1762589391, 'd849d8b6', 4, 0, 0)

Line : 187
File : sessions.php