phpBB : Erreur Critique

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '51e00dde5e988121d1a76f083705790e' 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 ('51e00dde5e988121d1a76f083705790e', -1, 1764850624, 1764850624, 'd849d806', 4, 0, 0)

Line : 187
File : sessions.php