If you have completed your Devolutions Password Server installation and it's Web interface isn’t displaying properly (as shown below), here are some steps to follow to resolve the issue.
Devolutions Server Web interface
1. Proceed to an IIS Features Diagnostic and verify if all the ISS features are on and installed properly. If you see that your Static Content hasn't been properly installed you will need to enable that Windows Feature.
IIS Features Diagnostic
2. In Windows Features, under World Wide Web Features - Common HTTP Features verify if the option Static Content is turned on.