I don't know what's wrong with my DB but when the html opens, I still get an error (screenshot 3).
When I click on the left lnik, I get a "can't find webpage" page.
When I click on the right link I get an error (screenshot 1).
But I don't get errors after conversion anymore!
As explained in the Readme and in the 3rd post on page 1 - Some Additional Information - MEDIA FILES:
If you want to watch the videos, audios and images, you can click on the thumbnails and media links. Popups should open displaying the media.
However, online media files are available only for the last ~ 3 weeks.
But you still can open the offline media files, they are linked as well.
For this it is necessary to copy the folder "Media" from /sdcard/Whatsapp (Android) or net.whatsapp.WhatsApp (Iphone) to the certain folder of your computer where this tool is installed.
so that e.g. the file
can be displayed correctly.
Use Itunes Backup and an Iphone Backup Tool like I-Twin or Iphone Backup Extractor to get the files.