- your site is using HTTPS and you are trying to load the iframe src there over http - you just need to change that src to http and it will work again
- your Tiki version is old (14.1) and obsolete (unsupported) so you are risking security related issues - you should upgrade at least to Tiki 18.8 LTS
This is the error related to 1st issue which you can see in the Chrome dev console when you inspect the page:
Mixed Content: The page at 'https://seagypsies.nyc/localdivingwiki/tiki-index.php?page=Local%20Marine%20Life' was loaded over HTTPS, but requested an insecure frame 'http://seagypsies.nyc/sealife/?page=Documentation'. This request has been blocked; the content must be served over HTTPS.
I haven't edited this wiki in a number of months, but I just realize that the two image gallery pages (Local Marine Life and Local Divers) are now blank. So I tried to edit the wiki, but when I log in, I get the attached error message.
Here is the wiki: https://seagypsies.nyc/localdivingwiki/tiki-index.php
I have tried to get support from my hosting provider, but they haven't figured it out yet. I figured that someone here might have an idea what is going on.