phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '18d156b7dd79c60d42ba50c9ec5ee38e' 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 ('18d156b7dd79c60d42ba50c9ec5ee38e', -1, 1765391557, 1765391557, '12610e59', 5, 0, 0)

Line : 187
File : sessions.php