Full Text from RSS feed

Hi,
I am planning to purchase this script to generate full text rss for my website. I tried the free version of the scripts to ensure that it can get the full text for the rss feeds that I want to use before making the purchase. It works fine for all except one.

https://rss.modernghana.com/news.xml

Can this be fixed so that I can be guaranteed that it will work for this website before I make the purchase.

Thanks

It appears their servers are refusing to respond to requests from our servers. Might be a block on the servers we use or some other system refusing access.