Links Dolphin make a joke at every moment
I am very happy with Dolphin, for me has been a great discovery, pay the license to be free of ties to Dolphin, and upgrade to the new version and to top everything right. But links BoonEx, returning when they want, it's a surprise at any time. And if this is not so, but I read well that by paying the license for one year removed these links.
1) Did you install the correct version (ad-free if you bought it)
2) Did you read the blog update from the devs which apologised for the link issues and explained they could be fixed.