As far as I can see, you're subscribing to the product named Xenith from the company named Metastock. This is a low tier product aimed at retail traders and investors, and it does not include access to any Refinitiv APIs. If you'd like the capability to consume Refinitiv data programmatically, consider a higher tier Refinitiv product. Refinitiv Sales Team will be happy to help you select the product that is the best fit for your specific use case.
Did you check with this troubleshooting guide : https://developers.refinitiv.com/en/article-catalog/article/eikon-data-api-python-troubleshooting-refinitiv