This is happening because of blocking. Your guestbook is on an unsecured folder of your website, whilst trying to display in a secured page on your website. You should ask your host to ensure that the HTTPS is applied to all subfolders of your domain. They can do this by making a change to your htaccess file.
It may be that you may have added the website address to the script somewhere either during installation or somewhere in the back-end admin area. If so, you should ensure that you alway use the HTTPS designation in the URL. Although the script itself will still work, it will pull the script from the non-secure URL, which is probably what is causing the issue. If you don’t want to reinstall the script, just ask your host to override the block through htaccess. You can see the problem in the source code of the page:
Strange, I couldn’t see it in Safari or Chrome - maybe its something to do with security settings in the browsers. I have seen this problem before and it was always sorted by allowing non-secure content to display in a secure page, as suggested by the error message in the console.
@jazzbird, From my take on it it is definitely a “https” conflict (like what @francbrowne is implying), because when I force your domain to display “http://” I get the guestbook to make an appearance.
Thank you ever so much @francbrowne and @FlaminFig! I have done as you have suggested and am now republishing. Fingers crossed!
@duncan, I was at a loss as to what I had done wrong (I know it’s something from my end) so I went back this evening and inserted another wide box and then the wording again over it. But thank you for your help earlier. Much appreciated!
@duncan, I just checked in Safari and Chrome again (I wasn’t able to check earlier after republishing) but it’s still not showing. It’s rather bizarre. It’s just the About Me page (the guestbook wording is okay).
@jazzbird, Checking your site the “About the Yumcha Mamma” is definitely there where you say it is, but you’ll need to bring it to the front on the Sparkle canvas. It is at the moment sitting behind the widebox.
Thank you again @FlaminFig! It’s so odd as I kept bringing the words to the front and on Sparkle and in the preview it looks fine. I tried again and just The Yumcha Mama displayed. I’ve now sent the wide box to the back and republishing now.