InfoPath Dev

 Hi, I have a big problem whit InfoPath libraries. The last year i was working whit InfoPath 2010 and SharePoint 2007, but now I'm working whit SharePoint 2013 and all the InfoPath forms doesen´t work. One of the problems is when a try to validate a user in a contact selector control and when I try to create a new form show me this msg ...

Check your dataconnections on infopath, i had the same problem and one dataconecction wich recived data from sharepoint was broken, so i deleted it and my problems ended. Regards.