Sorry for the delay!
The customer does not know when it happened.
We have restored a backup from 3 months ago, and the problem continues.
No updates have been made, new plugins added.
We also tried to update all plugins and core to the latest versions, without solving the problem.
The problem is in the admin area.
We have these errors:
Uncaught SyntaxError: expected expression, got ‘<‘
in moxie.min.js, plupload.min.js and wp-plupload.min.js
When editing a page or article, in addition to the above errors, we also have this errors:
Uncaught TypeError: wp.Uploader is undefined
in media-views.min.js
The same happens in Media Gallery.
Any suggestion?
Thank.