The module has been very useful for us and we intend to maintain its continuity combined with the corresponding block.
We will look for possible solutions and share with the community
We solve this by changing the following lines in the renderer.php code:
Line 131: change what is by: $ result = array ();
Line 100: where html_writer appears write html_writer :: label ($ url, $ image. $ Certname.) And leave the rest as is.