Sorry - didn't get notification of your reply and forgot I had a support ticket in.
Not sure what you mean by "Update your site backend and FTP details". I have the latest version of EB if that's what you mean - lost on updating FTP though.
I assume these are EB generated URLs as I haven't done anything except for using jSitemap Pro to write sitemaps which are auto-pinged to Google, etc.
EDIT: Just logged into GWT dashboard. There's this error now:
The tag 'amp-video extension .js script' is missing or incorrect, but required by 'amp-video'. This will soon be an error.
First detected: 9/22/18 Status: Warning
Now only 1 URL is listed -
https://www.go4apes.com/blog/pipes-under-driveways?format=amp