1) wrong brand link
In pageTemplate (https://github.com/forge/core/blob/master/scaffold-faces/src/main/resources/scaffold/faces/pageTemplate.xhtml) the link should be:

<h:link id="brandLink" outcome="@

{targetDir}/index.xhtml" styleClass="brand"> <h:outputText value="@{appName}" /></h:link>
in place of:
<a href="@{targetDir}

/index.xhtml" class="brand">@

{appName}

</a>
[to avoid a wrong redirect to http://localhost:8080/index.xhtml]

2)missing resource jboss-community.png

in the resource folder the image jboss-community.png doesn't exist (it's used in the error page:
https://github.com/forge/core/blob/master/scaffold-faces/src/main/resources/scaffold/faces/error.xhtml)

3) add mime-mapping in web.xml
To eliminate the annoying log jboss server log:
23:59:54,914 AVVERTENZA [javax.enterprise.resource.webcontainer.jsf.context] (http--127.0.0.1-8080-1) JSF1091: No mime type could be found for file favicon.ico. To resolve this, add a mime-type mapping to the applications web.xml

you should add on web.xml:

<mime-mapping>
<extension>ico</extension>
<mime-type>image/x-icon</mime-type>
</mime-mapping>