Invalid Feed

[simple-rss feed=”http://minecraft.softegg.com/forums2/feed.php?mode=news” limit=”10″ hide_description=”0″ amount_of_words=”10″]

It is saying the following when I use the above in a post:

“Unfortunally the feed you provided is not valid…”

Have I typed something wrong, or is there something wrong with the feed I’m using?

https://wordpress.org/plugins/wp-simple-rss-feed-reader/