How to access previous version of a infopath form for a SharePoint 2013 list

We customized a SharePoint list in InfoPath and some of the fields in the InfoPath form have been disappeard. Is there a way to see previous versions of the InfoPath Form to find out who/what has changed the form. This is not an InfoPath form library, only an ordinary SharePoint list whose Open and Edit item options have been customized using InfoPath. SharePoint 2013. Thank you.