Unable to login/signup

I have followed all setup steps to deploy the Open Bank Project API server on cloud VM. The server starts successfully , but when I attempt to login/sign up via the application interface , it redirects back to login/signnup page without authenticating the user. Below are the setup and commands used:

• Environment setup on cloud instance:
  mkdir OpenBankProject
  sudo apt update
  sudo apt install git -y
  cd OpenBankProject
  git clone https://github.com/OpenBankProject/OBP-API.git
  cd OBP-API

sudo apt update
sudo apt install maven -y
mvn --version

• Configuration setup:
  Renamed property files in main/props/: cp sample.props.template default.props
  Configured hostname : http://0.0.0.0:8080

• HAProxy setup:
  sudo apt update
  sudo apt install haproxy -y

• Edited haproxy configuration file: /etc/haproxy/haproxy.cfg

frontend http_front
bind *:8080
default_backend jetty_backend

backend jetty_backend
server jetty1 120.0.0.1:8080 check

• Enabled, started and checked status of haproxy.

• Temporary env variable is set before running maven:
  export MAVEN_OPTS = "--add-opens java.base/java.lang=ALL-UNAMED"

• Started the server using:
  mvn install -pl .,obp-commons & mvn jetty:run -pl obp-api

Despite the server running and HAproxy forwarding requests correctly , the login & signup pages keep redirecting to themselves. Authentication does not proceed, and no user session is established.

Please Help me out to resolve this issue.

Start with main/props/sample.props.template and the resulting default.props, then inspect /etc/haproxy/haproxy.cfg alongside the Maven and Jetty startup commands. Reproduce the login/signup redirect on the cloud VM and trace the request and session flow; done means authentication completes and the user remains signed in.