Proxy apache2 to container gives 404 error

I am new to apache2 I've followed every tutorial on the internet, I think I've seen every question but it didnt help. The problem is that

• My container contains flask app.
• Container listens to 45654 port.
• assume my hostname is "myuni.edu" which is hosting lots of php things though apache2 rn which are available

1. curl http://localhost:45654 from host machine works and returns html text.
2. curl http://myuni.edu from remote machine (my laptop) works and returns html text.
3. My /etc/apache2/sites-available/newtest.conf file:

<VirtualHost *>
    ServerName myuni.edu
    ProxyPreserveHost On
    ProxyRequests Off
    ProxyVia On
    ProxyPass /newtest http://127.0.0.1:45654/
    ProxyPassReverse /newtest http://127.0.0.1:45654/
</VirtualHost>

4. /var/log/apache2/access.log shows "GET /newtest HTTP/1.1" 404 492 "-" "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Falkon/22.12.2 QtWebEngine/5.15.12 Chrome/87.0.4280.144 Safari/537.36"
5. sudo docker logs port_testing shows only 200 requests from curl-ing localhost
6. docker-compose.yml file:

version: "3"
services:
  web:
    image: basic_flask_test
    container_name: port_testing
    environment:
      - SCRIPT_NAME=/newtest
    build: .
    ports:
      - "45654:5000"

let me know if I should provide any other details. I don't know where else to go