The image in a billboard layout has an invalid value for "document". "document" must not be null

Hi all,

uploaded the documents and showing those documents to the user but i facing error in site page showing 

"expression evaluation error [evaluation ID = aae0b:d617b] in rule 'sha_imagelist' at function a!forEach [line 23]: Error in a!forEach() expression during iteration 1: Expression evaluation error at function a!billboardLayout  [line 35]: The image in a billboard layout has an invalid value for "document". "document" must not be null".

I checked it by using different function like fco_hasvalue and fco_isnullorempty still i have this issue can anyone help me to resolve this error

 a!localVariables(
  
   local!listingData:rule!SHA_LISTING_EXPRUL(listingId:index(ri!listing,"listingId",null)),
   local!houses: rule!SHA_qe_getDocuments(
     entityId: index(ri!Document,"entityId",null)
   ),
   local!address:rule!SHA_qe_toGetPropertyAddressDetails(
     listingId: local!listingData
   ),
     local!appCount: length(local!listingData),
     local!colCount: 4,
     local!absoluteDiv: local!appCount/local!colCount,
     local!quotient: quotient(local!appCount,local!colCount),
     local!rowCount: if(
       local!absoluteDiv = local!quotient,
       local!quotient,
       local!quotient + 1
     ),

     
   
   {
     a!forEach(
       items: 1+enumerate(local!rowCount),
     expression: a!columnsLayout(
       columns: a!localVariables(
         local!indexes:(1+enumerate(local!colCount))+(local!colCount*(fv!item-1)),
         local!indexedVaues: rule!FCO_removeNull(index(local!listingData,local!indexes,null)),
         local!Vaues: rule!FCO_removeNull(index(local!houses,local!indexes,null)),
         local!Add: rule!FCO_removeNull(index(local!address,local!indexes,null)),
      a!columnLayout(
           contents: {
             a!cardLayout(
               contents: {
                 a!billboardLayout(
                   backgroundMedia:a!documentImage(
                     document:
                     /*if(*/
                       /*rule!FCO_isNullOrEmpty(local!Vaues),*/
                       /*{},*/
                       {index(local!Vaues,fv!item,null)}
                   ),
                   height: "SHORT",
                   marginBelow: "NONE",
                   overlay: a!barOverlay(
                     contents: 
                       {
                         a!sideBySideLayout(
                           items: {
                             a!sideBySideItem(
                               item: a!richTextDisplayField(
                                 label: "Address",
                                 labelPosition: "COLLAPSED",
                                 value: a!richTextItem(
                                   text: index(index(local!Add,"addressline1",null),fv!item,null),
                                   size: "MEDIUM",
                                   style: "STRONG"
                                 )
                               )
                             ),
                             a!sideBySideItem(
                               item: a!richTextDisplayField(
                                 label: "City & State",
                                 labelPosition: "COLLAPSED",
                                 value:index(index(local!Add,"city",null),fv!item,null) & "," & index(index(local!address,"province",null),fv!item,null),
                               ),
                               width: "MINIMIZE"
                             )
                           },
                           alignVertical: "MIDDLE",
                           showWhen: rule!FCO_hasValue(
                             index(local!Add,fv!item,null)
                           ),
                           stackWhen: "TABLET_LANDSCAPE"
                         )
                       },
                       style: "DARK"
                   ),
                 
                 ),

               },
               showBorder: rule!FCO_hasValue(
                 index(local!Add,fv!item,null)
               ),
             ),
             a!cardLayout(
             contents: a!sideBySideLayout(
               items: {
                 a!sideBySideItem(
                   item: a!richTextDisplayField(
                     label: "Price",
                     labelPosition: "COLLAPSED",
                     value: a!richTextItem(
                       text:index(index(local!indexedVaues,"price",null),fv!item,null),
                     
                     size: "LARGE",
                     style: "STRONG"
                     )
                   )
                 ),
                 a!sideBySideItem(
                   item: a!richTextDisplayField(
                     label: "Beds",
                     value: a!richTextItem(
                       text:index(index(local!indexedVaues,"bedRooms",null),fv!item,null)
                     )
                   ),
                   width: "MINIMIZE"
                 ),
                 a!sideBySideItem(
                   item: a!richTextDisplayField(
                     label: "Baths",
                     value: a!richTextItem(
                       text:index(index(local!indexedVaues,"bathRooms",null),fv!item,null)
                     )
                   ),
                   width: "MINIMIZE"
                 ),
                 a!sideBySideItem(
                   item: a!richTextDisplayField(
                     label: "Sq. Ft.",
                     value: a!richTextItem(
                       text:index(index(local!indexedVaues,"squareFootage",null),fv!item,null)
                     )
                   ),
                   width: "MINIMIZE"
                 )
               },
               showWhen: rule!FCO_hasValue(
                 index(local!indexedVaues,fv!item,null)
               )
             ),
             showBorder: rule!FCO_hasValue(
               index(local!indexedVaues,fv!item,null)
             )
           )
           },
          width: "NARROW_PLUS", 
)
         )
       )
       )
       

 }
 )