I see you figured it out and fixed it already, but for future reference:
Anyone on the trusted list of a profile can fix this problem. It happens when someone is linked as their own parent. All you have to do is go to the edit tab, look on the right hand side under Edit Family, and click the  link next to the father or mother (whichever one is causing the circular link). Scroll down to the bottom of the page and click the button that says "Remove name as father/mother of name".