User-484054684 posted
Yes, so as it suggests, modify your web.config file to turn OFF the custom errors.
There would be already system.web section and customErrors mode in the web.config file, most probably. So change the value of mode to Off.
If the section doesn't exist, add it manually.
Once you switch off custom errors, you can observe the actual error when you browse the page anywhere out side also.
If you set the mode to RemoteOnly, then, you can see the actual error when you browse the page on "local server machine"
<configuration>
<system.web>
<customErrors mode="Off"/>
</system.web>
</configuration>
Please mark this as answer if this answers your question.