EP throwing unauthorized Error from Outer Connection

Hi All,

Recently I have installed EP for our system which is working fine locally. I to get the access from outside I made the public IP and able to login in Server but EP web site is throwing below error.

Please help me in it or let me know if I need to do anything regarding the same.

URL - http://IP Address (ex 192.168.0.0)/sites/DynamicsAx/_layouts/settings.aspx

Error -

Message: An unhandled error has occurred. To view details about this error, enable debugging in the web.config file or view the Windows event logs.

Source: Microsoft.SharePoint.ApplicationPages

Exception details:

Unable to find the specified file.

at Microsoft.SharePoint.ApplicationPages.WebAdminPageBase.OnLoad(EventArgs e)
at System.Web.UI.Control.LoadRecursive()
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

AX 2012 R3 CU11