phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '78fcb691b72df28690f557487c7c4d0c' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('78fcb691b72df28690f557487c7c4d0c', -1, 1736636105, 1736636105, '030f0c85', 5, 0, 0)

Line : 198
File : sessions.php