Microsoft ASP.NET Custom Errors Found Turned Off Port 443

<div class="votingouterbox"> <div class="voting">                     <div class="votenumber" style="display: block;">0</div> </div> <div class="votinglabel">            </div> </div> <div class="messageContent"> <div class="container"> <div class="body">I am failing a security scan on a Windows 2012 Server that is running a web application. The error is"

Microsoft ASP.NET Custom Errors Found Turned Off     Port 443:  The question is; If I simply go into the ASP.Net and click on the Custom Errors option will that correct the problem?  Also, is there a chance that doing so will have a negative effect on my Web Application?  The same thing shows up for Port 80.

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