This is a false positive, and not something to worry about.
When Awasu downloads a feed, it stores a copy in a file on your PC, and it's this that AVG has found and flagged. The file you sent me is a normal HTML page, not an XML feed, so I think what's happened is that you've somehow managed to create a channel that has its feed URL set to the web site's home page, instead of its feed. Awasu has downloaded this, stored it in a file on your PC, and AVG has flagged it. I don't know exactly what AVG has spotted, but given that it's called "HideSeoSpam", there's probably some funky SEO stuff embedded in the page.
Awasu never opens this HTML file, so the funky SEO stuff never gets run, so it's completely benign.
BTW, even if it were a proper feed XML, that contained malicious content, Awasu will remove it
before showing it to you in a browser, so even if the website gets hacked and bad stuff gets inserted into the feed, Awasu will keep you safe.