500 - An error has occurred in Admin - Joomla! Forum - community, help and support

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hi,

the website working fine, nothing has changed, have created new article usual , today, have error message when trying edit article in admin.

"500 - error has occurred.

view not found [name, type, prefix]: article, html, contentview

return control panel"


i tried clean cache folder, purge etc...nothing has changed.
is has idea?
any wonderful.

thank you

please check if file on directory

../administrator/components/com_content/views/article/view.html.php

and if file present please check if class has type of class decleration

class contentviewarticle extends jview





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