Trouble with XPath expression - extracting information from webpage

I am a beginner in KNIME and in webscraping.

I have an Excel list of products with article number, the products can be searched by the article numbers on the company website. I would like to add columns of product description and weight to the excel.

My current workflow looks like this

Now I’m stuck on the XPath node as I cannot find the correct XPath expression to get the information I need. (Error: selected XML element is not a tag nor an attribute)

The XML of the information I want to extract looks like this:

Would be great if someone can give me suggestions on how to solve this.

Are there other ways to extract information from websites?