Apache virtual host + reverse proxy conflict - apache

Question

I have a server running ubuntu+apache. I have a website running (old ipython notebook with a multiuser-hack) that can be accessed through xxx.xx.xx.xx (=:myip). The corresponding apache configuration called sins.conf looks like this:
<VirtualHost *:80>
ServerName ipython.local-server
ServerAlias
WSGIDaemonProcess ipythonapp2 user=www-data group=www-data processes=2 threads=5\
python-path=/home/sins/ilmrt/lib/python2.7/site-packages
WSGIScriptAlias / /home/sins/ilmrt/ipysite/wsgi.py
<Directory /home/sins/ilmrt/ipysite>
#WSGIProcessGroup ipythonapp2
WSGIApplicationGroup %{GLOBAL}
Require all granted
Allow from all
</Directory>
Alias /static/ /home/sins/ilmrt/ipysite/static/
<Location "/static/">
Options -Indexes
</Location>
</VirtualHost>
and works perfectly.
Now, since I'm about to run a new website (jupyterhub) with reverse proxy in addition, I setup a new apache configuration called jupyterhub.conf:
ProxyPass / http://localhost:9111/
ProxyPassReverse / http://localhost:9111/
Header edit Origin http://myip:9111/ localhost:9111
RequestHeader edit Origin http://myip:9111 localhost:9111
Header edit Referer http://myip:9111 localhost:9111
RequestHeader edit Referer http://myip:9111 localhost:9111
<Location ~ "/(user/[^/]*)/(api/kernels/[^/]+/channels|terminals/websocket)/?">
ProxyPass ws://localhost:9111
ProxyPassReverse ws://localhost:9111
</Location>
If i run sudo a2ensite jupyterhub and sudo service apache2 reload, the new website works as expected under http://myip:9111. However, the old website with the address http://myip shows Service Unavailable.
I don't understand what I need to change to make both sites working at the same time. Any help?
EDIT:
I believe I need to put the jupyterhub configuration inside a <VirtualHost *:9111>, but if I start the jupyterhub server it says
Proxy appears to be running at http://myip:9111, but I can't access it. Connection refused.

Answer 1

Okay, so the trick was as I assumed: It needs to be put in a VirtualHost.
For some reason I initially put a Listen 9111 in front of the config-code below, which is why it blocked something..Here's the code in case anyone is interested:
<VirtualHost *:9111>
ProxyPass / http://localhost:9111/
ProxyPassReverse / http://localhost:9111/
Header edit Origin http://myip:9111/ localhost:9111
RequestHeader edit Origin http://myip:9111 localhost:9111
Header edit Referer http://myip:9111 localhost:9111
RequestHeader edit Referer http://myip:9111 localhost:9111
<Location ~ "/(user/[^/]*)/(api/kernels/[^/]+/channels|terminals/websocket)/?">
ProxyPass ws://localhost:9111
ProxyPassReverse ws://localhost:9111
</Location>
LogLevel debug
</VirtualHost>