Fix Server Application Error in IIS: Methods

There are several methods to solve the Server Application Error in IIS.

1. Review log files: examine IIS log files to understand the specific reasons for errors, in order to quickly pinpoint and resolve issues.
2. Restarting the IIS service: Try restarting the IIS service, sometimes a simple reboot can solve some issues.
3. Check the application pool settings: Make sure the application pool settings are correct, including .NET version, authentication, memory limits, etc.
4. Check IIS configuration: Review the configuration files of IIS to ensure all settings are correct and free from errors.
5. Check for code errors: If the Server Application Error is caused by a code error, check the code logic and fix the error.
6. Update the .NET framework: Sometimes the Server Application Error is caused by a lower or incompatible version of the .NET framework, you can try updating the .NET framework version.
7. Install updates patches: Make sure that both the system and IIS have the latest updates patches installed to address some known issues.
8. Use tools to detect: Utilize tools such as Process Monitor, DebugDiag, etc. to assist in diagnosing and resolving Server Application Errors.

By following the methods mentioned above, you can help resolve the Server Application Error issue with IIS. If the problem persists, consider reaching out to IIS support team or professional technical support for assistance.