Java Application not working in browser "refused to connect."

I have installed my app in /home/XXXXX/

/home/ |— prizm-dist/ | |— conf/ | |— jre/ | | |— [jre files] | |— prizm_db/ | |— html/ | |— logs/ | |— run.sh | |— run_test.sh | |— prizmEngine.jar

Above is complete file structure

I am trying to access my app in browser but getting error

refused to connect. Try: Checking the connection Checking the proxy and the firewall ERR_CONNECTION_REFUSED

My app is trying to use Port : 9976

I have enabled UFW 9974:9976

I have also installed Java Package in my Droplet, but still I am not able to access my app. Please help