Expression evaluation error at function a!forEach [line 51]: Error in a!forEach() expression during iteration 1: Expression evaluation error : Invalid index: Cannot index property 'therapeuticArea' of type Text into type DataSubset

Hi All, Please help me on this error

a!localVariables(
  local!listOfAmendments: if({
    index(
      index(
        rule!ISR_er_PopulateAmendmentsInExecuteMeetingDataSubset(meetingId: ri!meetingId),
        "data",
        {}
      ),
      "amdId",
      {}
    ) = index(rule!ISR_qry_GetISRAmendmentPrimaryReviewers(
      meetingId: ri!meetingId,
      primaryReviewer: ri!primaryReviewer,
      isActive: true
    ),"amdId",{})
  },rule!ISR_er_PopulateAmendmentsInExecuteMeetingDataSubset(meetingId: ri!meetingId ),{}),
  /*(Amendment Number, Amendment Reason, Proposal Reference Number, */
  /*Study Title, Primary Investigator, Medical Scientist/Proposal Champion (from GIL-134), */
  /*Currency, Budget, Slides (Slide for the Amendment) (GIL-263))*/
  local!tableAmendmentGridStart: "
 Amendments to be Reviewed: 

",
  local!tableAmendmentGridEnd: "



 

 



TA


Ref #


PI


Country


Study Category


 

 



 
",
  local!amendmentsGrid: a!forEach(
    items: local!listOfAmendments,
    expression: "

 

 

 
" & fv!item.therapeuticArea & "" & "" & rule!CMN_er_generateRecordLink(
      label: fv!item.amendmentNumber & " / " & fv!item.proposalNumber,
      recordType: cons!ISR_RECORD_GS_AMENDMENT,
      identifier: fv!item.amdId,
      siteUrl: cons!ISR_GS_AMENDMENT_RECORD_SITE_PAGE_URL
    ) & "" & /*"" & fv!item.proposalNumber & "" & */
    "" & fv!item.primaryResearcher & "" & "" & fv!item.countryName & "" & "" & index(
      rule!ISR_qry_GetReferenceValueByType(
        typeCode: cons!ISR_TEXT_TYPECODE_RESTYPE,
        code: index(
          rule!ISR_qry_GetStudyRequestsByReferenceNumber(
            referenceNumbers: fv!item.proposalNumber
          ),
          "researchType",
          {}
        ),
        isActiv: true()
      ),
      "name",
      {}
    ) & "
"
  ),
  /*local!listOfAmendments*/
  concat(
    local!tableAmendmentGridStart,
    joinarray(local!amendmentsGrid, " "),
    local!tableAmendmentGridEnd
  )
)