Epic Privacy Browser Forums

Epic Privacy Browser is a great Search engine but there's one problem that keeps bothering & that is whenever I try to log in to certain websites like <nascigs.com> or convert a YouTube music clip or video by "YouYube to mp3 converter" the screen will lock up on me or show a spinning wheel or even at times show me some kind of a virus warning & I know it's all B.S. but the only thing I can do over & over is to restart my PC. This has become very bothersome to me & I know there must be a solution? If anybody could give me some feedback on this issue I would greatly appreciate it! Thank you...