phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c8f453adf81be60010c2b99d73a370af' 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 ('c8f453adf81be60010c2b99d73a370af', -1, 1762004367, 1762004367, 'd849d8a1', -9, 0, 0)

Line : 187
File : sessions.php