@java script inject error

Help
1

I have below error while executing the js script for page for the page:

https://tools.usps.com/go/ZipLookupResultsAction!input.action?resultMode=1&companyName=&address1=&address2=&city=gdf&state=AR&urbanCode=&postalCode=&zip=

image

Function(e) {
var ErrorDataNotFound=’ ‘;
var elems=document.getElementsByTagName(‘UL’);
for (i in elems){
if((’ ‘+elems[i].className+’ ‘).indexOf(‘error’)>-1){
ErrorDataNotFound+=elems[i].innerText+’\n’;}
}
return ErrorDataNotFound;
}

Any idea about the error?