Webclient: 11.0.2109.7

LF 11.0.2102.205

Recently we had a security audit by our cyber team and received a very low score due to the DMZ Forms site having some issues - namely we are using the default website instead of something like forms.hostname.com.  

We are receiving a lower score due to leaving the Default.htm pages in the IIS directory.  The web team wants to utilize the index.cshtml file.  However when we attempt to map a path to it, we are met with an error:

Whats odd is that we have configured LFDSSTS to use this file already with no issues in the default website:
 

But we need to configure LFDSSTS for the new IIS site to use views/home/index.cshtml, but keep getting that error.

Has anyone successfully reconfigured this?  Our vendor passed this along to Laserfiche, who "was unable to provide valuable input on this ticket" and suggested posting it here.

Thanks in advance.