Index Error (indexed by its corresponding record type fields or relationships)

Hi 

when i uplaod a doc to the grid , it returns this error shown in image below(Document must be indexed by its corresponding record type fields or relationships) . 

ALSO the name field shows [Reaction Tree] what is that?

where exactly am i supposed to fix the indexing? how to resolve this issue  ?

 local!document:rule!SKJ_GetDocumentByDocId(local!ac),
a!sectionLayout(
                label: "Documentation Details ",
                labelIcon: "file-text",
                labelSize: "SMALL",
                labelColor: "STANDARD",
                contents: {
                  a!columnsLayout(
                    columns: {
                      a!columnLayout(
                        contents: {    a!gridLayout(
                          totalCount: count(local!document),
                          headerCells: {
                            a!gridLayoutHeaderCell(label: "Document" ),
                            a!gridLayoutHeaderCell(label: "Name" ),
                            a!gridLayoutHeaderCell(label: "Classification" ),
                            a!gridLayoutHeaderCell(label: "Uploaded By" ),
                            a!gridLayoutHeaderCell(label: "Uploaded On" )
                          },
                          columnConfigs: {
                            a!gridLayoutColumnConfig(width: "DISTRIBUTE", weight:3 ),
                            a!gridLayoutColumnConfig(width: "DISTRIBUTE", weight:3 ),
                            a!gridLayoutColumnConfig(width: "DISTRIBUTE", weight:3 ),
                            a!gridLayoutColumnConfig(width: "DISTRIBUTE", weight:3 ),
                            a!gridLayoutColumnConfig(width: "DISTRIBUTE", weight:2 )

                          },
                          rows: a!forEach(
                            items: local!document, /*localdata*/
                            expression: a!gridRowLayout(
                              id: fv!index,
                              contents: {
                                a!fileUploadField(
                                  target: cons!SKJ_DOCUMENTS_FOLDER,
                                  maxSelections: 1,
                                  value: /*local!doc,*/
                                 fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{6c686146-7506-45c1-b2e6-1db2e0eb6900}appianDocId'],
                                  
                                  saveInto:
                                  {/*local!doc*/
                                    fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{6c686146-7506-45c1-b2e6-1db2e0eb6900}appianDocId'],
                                  a!save(fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{66325d17-158b-4776-98b3-761a5a458e5c}addedBy'],loggedInUser()),
                                  a!save(fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document'],1),
                                  a!save(fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{1fc16e35-b769-46b0-8d9e-9dc633cbb090}addedOn'],today()),
                                  a!save(fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{f65ae4e8-afd3-4a5a-80c7-3c67d225a274}docName'],extract(fn!getcontentobjectdetailsbyid(fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{6c686146-7506-45c1-b2e6-1db2e0eb6900}appianDocId']), "Name:", "."))
                                  
                              
                                  /*      a!save(fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{6d510991-df65-4ae0-a9b9-179a36931fb0}docId'],document(documentId: local!doc, property: "id"))*/
                                  },
                                  buttonDisplay:"ICON",buttonStyle: "STANDARD"),



                                  a!textField(
                                    value:    a!save(fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{f65ae4e8-afd3-4a5a-80c7-3c67d225a274}docName'],extract(fn!getcontentobjectdetailsbyid(fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{6c686146-7506-45c1-b2e6-1db2e0eb6900}appianDocId']), "Name:", ".")),
                                    
                                    saveInto:   'recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{f65ae4e8-afd3-4a5a-80c7-3c67d225a274}docName'
                                    
                              
                                  ),

                                  /* For the Department Column*/
                                  a!dropdownField(
                                    label: "department " & fv!index,
                                    placeholder: "-- Select -- ",
                                    choiceLabels: { "First", "Sec"},
                                    choiceValues: { 1, 2 },
                                    value: fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{a3f411dd-394e-4039-a2d0-600d333f94b0}classification'],
                                    saveInto:fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{a3f411dd-394e-4039-a2d0-600d333f94b0}classification'],
                                    required:false
                                  ),
                                  a!textField(
                                    value:local!addedBy ,/*fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{f65ae4e8-afd3-4a5a-80c7-3c67d225a274}docName'],*/
                                    saveInto:fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{66325d17-158b-4776-98b3-761a5a458e5c}addedBy'],                               
                                    required:true
                                  ),
                                  a!textField(
                                    value: today(),
                                    saveInto: fv!item['recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document.fields.{1fc16e35-b769-46b0-8d9e-9dc633cbb090}addedOn'],
                                 
                                    required:true
                                  )
                              }
                            )
                          ),
    showWhen: not(isnull(index(local!selectedEmployees,1,"null").accountId)),
                          addRowlink: a!dynamicLink(
                            label: "Add Document",
                               value:   append(local!document,'recordType!{52d6bfd4-9a4e-457c-ab2e-ede6cffdb054}SKJ Document'()) ,
                                /*startDate: today() + 1},*/
                                saveInto: {
                                  a!save(local!document, append(local!document, save!value))
                                 /* a!save(local!employees, append(local!employees, save!value))*/
                                }
                            
                        


                        
                          /*  saveInto: {
                              a!save(local!document, append(local!document, save!value))




                            }*/
                          ),
                          rowHeader: 1
                        )
                
                        }
                      )
                
             

              
                    }
                  )
                },
                showWhen: not(isnull(index(local!selectedEmployees,1,"null").accountId))
                
              )
            }
          )
        }
      ),