My question involves a child custody case from the State of: Arkansas

The mother of my 2 kids left my kids over 5 yrs ago... She was on drugs & took off across the U.S... Me & my fiance have been taking care of them ever since. She hasn't paid any child support. She started calling the kids (when she remembers them) about 2yrs ago... I'm wanting to know if bc she's done nothing for them in almost 6yrs & hasn't made any effort to visit, does she have any rights to my kids?