1% Converting input to HTML...
InputFormatPlugin: Recipe Input running
Trying to get latest version of recipe: prospectmaguk
1% Fetching feeds...
Traceback (most recent call last):
  File "site.py", line 58, in main
  File "site-packages/calibre/ebooks/conversion/cli.py", line 325, in main
  File "site-packages/calibre/ebooks/conversion/plumber.py", line 979, in run
  File "site-packages/calibre/customize/conversion.py", line 208, in __call__
  File "site-packages/calibre/ebooks/conversion/plugins/recipe_input.py", line 105, in convert
  File "site-packages/calibre/web/feeds/news.py", line 874, in download
  File "site-packages/calibre/web/feeds/news.py", line 1018, in build_index
  File "<string>", line 43, in parse_index
  File "site-packages/calibre/web/feeds/news.py", line 553, in index_to_soup
  File "site-packages/mechanize/_mechanize.py", line 199, in open_novisit
  File "site-packages/mechanize/_mechanize.py", line 255, in _mech_open
httperror_seek_wrapper: HTTP Error 404: Not Found
Traceback (most recent call last):
  File "site.py", line 58, in main
  File "site-packages/calibre/utils/smtp.py", line 212, in main
  File "site-packages/calibre/utils/smtp.py", line 191, in compose_mail