phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'fffaca5223ad8e7740dccc27d532091d' 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 ('fffaca5223ad8e7740dccc27d532091d', -1, 1738029808, 1738029808, '0aff0001', 167, 0, 0)

Line : 199
File : sessions.php