HTTP Error 500.19 - Internal Server Error The Requested Page Cannot Be Accessed - Solution 2
Here we consider how to solve the issue HTTP Error 500.19 - Internal Server Error.
We have already given a solution in the following link.
Solve HTTP Error 500.19 - Internal Server Error
If the issue still exist, please follow these steps.
On Run Command Window, type inetmgr to open IIS and Select your website.
Right Click on the Website --> Manage WebSite --> Advanced Settings.
A new windows will be opened where you can find the settings for that website.
On the General Section, note down the name of Application Pool.
Now on the left panel of the IIS, click on the Application Pools Node at the top.
Select the earlier got Application Pool from the Features View.
Double Click on your application pool.
Here under .NET Framework version, ensure that framework 4.0 should be selected.
If you select framework 4.0 and click OK button, this issue will be resolved.
If Framework 4.0 Is Not Available, please install framework 4.0 on your system from here.
Install .NET Framework 4.0 .
After installing framework 4.0, if it is not available on IIS,
register framework 4.0 to IIS
Open Command Prompt as Admininstrator.
C:\Windows\Microsoft.NET\Framework\v4.0.30319\ and press Enter key.
Now type aspnet_regiis.exe -ir and press Enter key.
By this way, you can Register Framework 4.0 To IIS.
Now close IIS and re-open IIS and select Framework 4.0 for your application pool. (Step - 2).
That's all, by this way we can resolve this issue.