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Get My EstimateI tried to install the Sitecore Horizon editor on my local machine but after running the PowerShell script, and some execution, my working instance somehow still could not be stopped and I got the below error when I hit the website in the browser.
I even tried to uninstall the Horizon but no luck. Before I started the installation, I took backup of my root so that I can revert my root folder and yet again the original instance was still not working. After some googling, I found the solution as mentioned in this blog.
Error type: HTTP Error 500.21 - Internal Server Error
Please follow the below steps if you are facing same issues in your instance.
Open Application Pools of your website root.
Right-click on the application pool of your website and select the Advance setting.
Now select .Net CLR Version from “No managed code” to “v4.0”.
Open command prompt as a run as administrator and run “iisreset” command.
Now website will start working fine.
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