Topic on Project:Support desk

In my website http://riforma.info/wiki/index.php?title=Pagina_principale pages are not displayed anymore, although the coding is normally accessible. What happened? How can I fix this? I use MediaWiki 1.21.1 Thanks for your help. Paolo Castellina

See https://www.mediawiki.org/wiki/Manual:Errors_and_symptoms#All_pages_have_no_content.2C_but_when_editing_a_page_the_wiki_text_is_there

Furthermore, please upgrade to a supported MediaWiki version. Your version is full of security vulnerabilities.