Blank page for AMP version

Hi,

I'm using EasyBlog 5.2.9 with Joomla 3.8.13.
I activated the AMP function, but I get only blank pages for the '?format=amp' URLs.

Normal blog post works fine:
https://www.triup.eu/vertriebsblog/vom-berater-zum-verkaeufer/

Blank page for AMP-version:
https://www.triup.eu/vertriebsblog/vom-berater-zum-verkaeufer/?format=amp

I have no idea, why it isn't working. What can I do to make this work?

Best regards