The Cause
Basically it's usually because your Cpanel has new IPs and the old IPs it knows are no longer available/working/valid.
The solution is to change the site's IP but you may run into issues for various reasons. Here is what I encountered below.
It redirects there even though public_html is empty and doesn't have any index or htaccess redirect.
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This issue happened after a CPanel migration, the site is being set to an old IP, this is the problem.
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You need to use the "Change Site's IP Address" feature.
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Changing ip for thedomain.com (thedomain) to ip.ip.ip.ip
Setting up for ip change..... Done
Sorry, ip.ip.ip.ip is in use by another domain name and is not a shared ip.
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1. You need to change root's shared IP
"Basic cPanel & WHM Setup"
Basic Config
2. Then change the site's IP address.
3. Then restart Apache
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