HTTP ERROR 404 /flexbox.xhtml Not Found in ExternalContext as a Resource

URI:/diamond/flexbox.xhtml;jsessionid=node01f70q1lj0uap51c292s2vq2j5y5558710.node0
STATUS:404
MESSAGE:/flexbox.xhtml Not Found in ExternalContext as a Resource
SERVLET:Faces Servlet

Powered by Jetty:// 9.4.36.v20210114