Error in Komento: violation of Google Guidelines regarding Structured Data

Hello,

Three days ago, I received a message on my Search Google Console saying that my website does not respect the guidelines of Google regarding the Structured Data.
It is an important issue because "all pages affected by manual actions can see reduced display features, lower ranking, or even removal from Google Search results.".

I found that the problem is in Komento.

To found the problem I used The Google Structured Data Tool.
If you want to check the problem please use: https://search.google.com/structured-data/testing-tool

Then test the following URL of my test website: (the error will be displayed on the right).
https://dev.guillenphoto.com/cms/en/why-a-photographer-should-have-a-photographic-identity-1.html

I have disabled Komento in my production website. You can test the following URL and check that there is no error:
https://www.guillenphoto.com/cms/en/why-a-photographer-should-have-a-photographic-identity-1.html

Please would you help me to solve the issue because for me it is a very important one?

Thanks for your help
Regards