calendar now showing up

i’ve installed Version 7.8.2 on a fresh windows server, mssql 14, iis, php 7.1.1

When click on calendar link, the screen is blank except for the navigation and settings button along the top. I’ve tried this in IE and Chrome.

When clicking on settings I see this in console:

Uncaught ReferenceError: CAL is not defined
at HTMLInputElement.onclick (index.php?module=Calendar&action=index&parentTab=All:578)

I’m not sure what to do to troubleshoot this, any suggestions?