Has anyone experienced a situation in Kentico where the admin portal is broken? I've attached an image where you can see the styling is completely missing.
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Mr.K
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Do you see any errors in Kentico Event Log or JS errors in browser console? – Dmitry Bastron Sep 14 '20 at 11:53
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Hi Dmitry. No js errors in console but I am getting 404 errors for the stylehsheets, which is the main issue, and that matches up with even log errors: Source: Application_Error Event code: PAGENOTFOUND Event URL: /cms/getdoc/sdfsdf-sdfsd-fsd-fsdfsdf/CMSPages/GetResource.ashx?stylesheetfile=/App_Themes/Default/DesignMode.css – Mr.K Sep 14 '20 at 12:30
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Typically an issue with 1 or many of the following:
- In general, installation failed
- No permissions granted to the IIS_IUSRS to the directory in the file system
- The directory/file does not exist in the file system
- Macros need to be resigned due to a change to the CMSHashStringSalt key in the web.config
- Improper website set up/configuration in IIS
- Caching
UPDATE
Remembered a few other things:
- Check the /App_Themes director and make sure you have the following themes
- Design
- Default
- Global
It may be best to copy those three themes from another installation with the same version and hotfix.

Brenden Kehren
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Thanks Brendon. Looks like it may be an issue with the instance of Kentico we're working with. – Mr.K Sep 15 '20 at 08:21