working but not always

Hello, I use ARI to read PDF files that are properly read here: http://ionsmonit.upwr.edu.pl/baza-publikacji/

and here not anymore:
http://ionsmonit.upwr.edu.pl/zespol/dr-inz-pawel-lochynski/

I noticed that the pole does not add its css code to the latter, but I don’t know why?

Can you help

Thank you
Paul

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