Follow the below steps to resolve this issue

1.  Login to hosting control panel,  click >>HOME,  click>> SETUP

2.  Select Proper ASP.NET version and  PHP version and select the extension as ISAPI and click OK

OR

1.  Login to hosting control panel,  click >>HOME

2.  Click >>ASP.NET and select proper version and backend coding and click OK

3. A web-config file will be created in your httpdocs folder.