Dynamic IP still being used by some Pages on a bitnami WordPress Website after allocating a static IP aka Elastic IP to the EC2 Domain.

I recently moved hosting from Siteground into AWS EC2 Instance with a Bitnami Installation. It worked like a charm but at the time I as still using the default Dynamic IP, then I got a Static (Elastic) Ip, and set it up letting AWS write the new Records for the new IP, then I noticed the email for the WordPress Admin User was using the old IP, example (user@XX.XX.XX.XX) where XX the old Dynamic Address. So I checked the site and some links and images were still using the old IP, so I manually changed the dynamic IP Address to the domain, since is currently working fine with the New Elastic IP. Since is a small site I figured, it will be easier to manually change them than to try to figure out the commands for Find & Replace. So now most of the website is using the domain which correctly is using the Elastic Ip. But here is my problem, Some pages are still using some of the old Dynamic Ip and since those pages are not accessible to directly modify because they are Account created by a Plugin, how can I make sure all the pages are using the domain instead of the old Dynamic Ip. I tried to clear the Cache using Total Cache but that didn't worked. Any input will be appreciated. Thank you.