I have re-tried from home (outside of office) and the node now returns results without the error!
My goal is to retrieve a list of medical professionals but unfortunately this didn´t happen. Any clue as to why? (understand this question may be out of scope for Knime support!)
The node only outputs the html content of the website. It is not able to execute or interpret any Javascript. This might be the issue here as the website seems to do some search after loaded, which is not done when executing the node.