Hi @prakasharbadev!
The problem on your site is that the images do not load from your domain, but from an IP address like this:
https://65.2.127.30:443/wp-content/uploads/slider/cache/723c073bab335beb3ea2158d0e5394c0/1-Entrance-Front-scaled.jpg
It is a common issue what you see here:
https://smartslider.helpscoutdocs.com/article/1757-moved-site#ip
that in the wp-config.php of the website, this value is used:
$_SERVER['HTTP_HOST']
to specify the value of a constant containing a URL. $_SERVER[‘HTTP_HOST’] does not always contain the URL of your website, so make sure it is not used in your wp-config.php file. Also, if there is another $_SERVER variable in the wp-config.php file, replace it with a real value.
In case you don’t have such variables in the wp-config.php file, then from our side, the code never changes, so problems that appear after some time are caused by some sort of cache, cache plugin or server cache. In your case it is probably a server cache issue, so in this case I would recommend getting in touch with your server host, and ask them to help you out with this.