The form template is trying to access files and settings on your computer. (!XDOCS_APP_SHORT_NAME_PLACEHOLDER) cannot grant ...

The form template is trying to access files and settings on your computer. (!XDOCS_APP_SHORT_NAME_PLACEHOLDER) cannot grant access to these files and settings because the form template is not fully trusted. For a form to run with full trust, it must be installed or digitally signed with a certificate.