[Error] Welcome to Nginx - Jitsi meet Installation

On installing jitsi meet the Nginx was already installed and its referring to Welcome to Nginx page while i did the clean installation.

Purged all the Jitsi packages and reinstalled still referring to Nginx welcome page
this file is present.

root@webrtc:/home/webrtc_admin# nginx -t 
nginx: emerghost not found in upstream "localhost" in /etc/nginx/sites-enabled webrtc.dotfines.com.conf:63 
nginx: configuration file /etc/nginx/nginx.conf test failed

What should i do?