To add the Cookie bar on the site, go to 'Cookie Bar' tab in the plugin.
You will see the below screen.
To enable cookie bar, switch the toggle ON.
Next, add a title to the cookie bar.
You can also customize bar, change the background color, text color, button color, button text color, link color, etc according to your preference.
Or, you can use your theme's CSS just by checking the Theme CSS checkbox.
Finally, click 'Update' to make the cookie bar live.