Apache2 error, redirects to defaultsite. Domain hosted by 1&1 Ionos - apache

Question

I am setting up an apache2/flask hello world test site to make sure everything works, but I can't stop it from being redirected to /defaultsite.
I know I've done the setup correctly as I don't get any error messages in my logs, just a 404 url not found for mycocoop.com/defaultsite.
Domain registered with 1&1 Ionos, mycocoop.com. Could this be an issue?
I have given control of the mycocoop directory to www-data.
I've removed all the standard files created by apache2. My sites-available only contains mycocoop.conf. I have disensite'd 000-default, so my sites-enabled only contains mycocoop.conf.
mycocoop.conf contents:
<VirtualHost *:80>
ServerAdmin CensoredFor#StackOverflow
ServerName www.mycocoop.com
ServerAlias mycocoop.com
WSGIDaemonProcess mycocoop user=www-data group=www-data threads=5
WSGIProcessGroup mycocoop
WSGIScriptAlias / /var/www/mycocoop/mycocoop.wsgi
Alias /static/ /var/www/mycocoop/build
<Directory /var/www/mycocoop/build>
Order allow,deny
Allow from all
</Directory>
ErrorLog /var/www/mycocoop/logs/error.log
CustomLog /var/www/mycocoop/logs/access.log combined
</VirtualHost>
file structure:
/var/www/mycocoop:
/api:
__init__.py
app.py
/build:
index.html #basic hello world html, currently not in use
/logs: #not relevant
/venv: #not relevant
mycocoop.wsgi
mycocoop.wsgi contents:
#!/usr/bin/python3.9
import sys
sys.path.insert(0, "/var/www/mycocoop/")
from api import app as application
api/__ init __.py contents:
from .app import app
api/app.py contents:
from flask import Flask
app = Flask(__name__)
#app.route("/")
def hello():
return "Hello World!"
if __name__ == "__main__":
app.run