phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd420c6d6bd866a71f02585fdbd36d768' 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 ('d420c6d6bd866a71f02585fdbd36d768', -1, 1785833332, 1785833332, 'd849d8cd', -9, 0, 0)

Line : 187
File : sessions.php