I am trying to host my website on C panel But I am getting the error that IP address is not white listed in network access , although I have added it in network access

err = new ServerSelectionError();

MongooseServerSelectionError: Could not connect to any servers in your MongoDB Atlas cluster. One common reason is that you’re trying to access the database from an IP that isn’t whitelisted. Make sure your current IP address is on your Atlas cluster’s IP whitelist: https://www.mongodb.com/docs/atlas/security-whitelist/
at _handleConnectionErrors (/home/ywznhqdu/nodevenv/public_html/DairydexFeeds/20/lib/node_modules/mongoose/lib/connection.js:875:11)

This is the error I am facing