Problems with loading articles after upgrading from OJS to JS

We did a command line upgrade from OJS to OJS
There are some problems with loading articles (galley), the message comes out :
Failed Ajax request or invalid JSON returned.

In the \lib\pkp\controllers\wizard\fileUpload\ folder
I found two files (version (version

When I call up the galley upload form, the opens instead of

How can this be fixed?
Thank you.

Thank you all for your participation.
When you update, the files remain


Deleting them will run the code to download the galleys of the new version of OJS

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