Script Fails to run at all.

I have a Modified Date initiated script that does not give us any output to the Console. It is a calculated value. We are calling script from a Workitem Attribute that is a small-string data type, but we can't get any response from the script once it is called.  Can someone please help?

// The script name must be the same in lines 1 and 8.
// This script needs to be modified to make it stop calculating when the state is set to "closed"
dojo.provide("org.example.calculated.AgeValueProvider");
dojo.require("com.ibm.team.workitem.api.common.WorkItemAttributes");
dojo.require("dojo.date.stamp");

(function() {
var WorkItemAttributes = com.ibm.team.workitem.api.common.WorkItemAttributes;
var fromISOString = dojo.date.stamp.fromISOString;
  dojo.declare("org.example.calculated.AgeValueProvider", null, {

    getValue: function(attribute, workItem, configuration) {
      var creationDate = fromISOString(workItem.getValue(WorkItemAttributes.CREATION_DATE));
                  var resolutionDate = fromISOString(workItem.getValue(WorkItemAttributes.RESOLUTION_DATE));
                                console.log("creation date" + creationDate);
                                console.log("Resolution date" + resolutionDate);
                  if(resolutionDate !== null){
                                var ageInSeconds = (resolutionDate.getTime() - creationDate.getTime()) / 1000;
                               
        var days         = parseInt(ageInSeconds / 86400);
        var hours        = parseInt((ageInSeconds-days * 86400) / 3600);
        var minutes      = parseInt((ageInSeconds-days * 86400 - hours * 3600) / 60);
               
        return days + " d, " +  hours + " hr, " + minutes  + " min";
                                 
                  }else{
                               
        var ageInSeconds = (Date.now() - creationDate.getTime()) / 1000;
                               
        var days         = parseInt(ageInSeconds / 86400);
        var hours        = parseInt((ageInSeconds-days * 86400) / 3600);
        var minutes      = parseInt((ageInSeconds-days * 86400 - hours * 3600) / 60);

        return days + " d, " +  hours + " hr, " + minutes  + " min";
      }             
                     
      return "";
    }
  });
})();