Cause : This error is encountered due to incorrect website settting or components if website is not installed on the server.
Resolution :
For checking exact error of your website, you have to log into your server via remote desktop and
check website on server’s local browser or disable custom error mode in your website’s web.config file:
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>
Once exact error is displayed, then you can resolve that error.