Unhandled Exception has occurred

Hi @Jayaprakash M MAHALINGAM ,

Thanks for reaching out.

The error Event Code: 3005 indicates that an unhandled exception occurred in your ASP.NET application. This is logged by the healthMonitoring system when a web request fails unexpectedly.

Here are a few things you can try:

Enable detailed error messages (temporarily, in a safe environment)

<system.web>
  <customErrors mode="Off"/>
</system.web>

This will help expose the actual exception message in the browser.

Check your web.config for missing or malformed configuration entries, especially connection strings, app settings, or custom handlers.

Review recent changes to your application — new deployments, updated packages, or modified code in Global.asax, Application_Start, or Page_Load can often be the culprit.

Inspect the Application Event Log in Windows Event Viewer for the full stack trace. This will usually include the exception type, message, and source.

Wrap risky code blocks in try-catch statements and log exceptions using a logging framework like Serilog or NLog.

There are additional posts that have the same issue but with better details, please check it out to see if your issue is similar:

• https://free.blessedness.top/en-us/answers/questions/320694/event-code-3005-an-unhandled-exception-has-occurre
• https://free.blessedness.top/en-us/answers/questions/1636101/(question)-what-is-the-root-cause-of-event-code-30

Hope this helps!