Crawler admin isn't run under Tomcat. It is run under Apache.
It also seems like your Solr isn't running. This is however not needed for Admin interface.
The crawlerws is running fine looking at response. This is only used however for some interactions in the admin interface and is not crucial.
So reread the portion of Apache setup to get the Admin interface running. It might already be running under http://ip:80/crawler
.