phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c9c6a880c5879f8cee5a32ea4372850d' 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 ('c9c6a880c5879f8cee5a32ea4372850d', -1, 1756892199, 1756892199, 'd849d891', -4, 0, 0)

Line : 187
File : sessions.php