phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '6f01ef7c709d387e8b0c067e0648c1f0' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('6f01ef7c709d387e8b0c067e0648c1f0', -1, 1768857987, 1768857987, 'd849d8d9', 2, 0)

Line : 180
File : /www/includes/sessions.php