phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'cf87a68ed0b27c4148f3eaf7d596b67d' 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 ('cf87a68ed0b27c4148f3eaf7d596b67d', -1, 1714008600, 1714008600, '12de43fb', 18, 0, 0)

Line : 187
File : sessions.php