Rule "I" has 1 parameters, but passed 0

Getting a strange error:

Could not display interface. Please check definition and inputs. Interface Definition: Expression evaluation error at function a!gridLayout [line 6]: Rule 'l' has 1 parameters, but instead passed 0 parameters.

Attaching the code for review.

a!localVariables(
  a!formLayout(
    label: "Create New Request",
    instructions: "Create a new Request Type|Maximum 5 requests can be created at a time",
    contents: {
      a!gridLayout(
        totalCount: count(
          ri!requestTypeRef
        ),
        headerCells: {
          a!gridLayoutHeaderCell(
            label: "Request Type*"
          ),
          a!gridLayoutHeaderCell(
            label: "Item*"
          ),
          a!gridLayoutHeaderCell(
            label: "Quantity*"
          ),
          a!gridLayoutHeaderCell(
            label: "Price ($)*"
          ),
          a!gridLayoutHeaderCell(
            label: "Comment*",
            align: "RIGHT"
          ),
          a!gridLayoutHeaderCell(
            label: ""
          )
        },
        columnConfigs: {
          a!gridLayoutColumnConfig(
            width: "DISTRIBUTE",
            weight: 2
          ),
          a!gridLayoutColumnConfig(
            width: "DISTRIBUTE",
            weight: 2
          ),
          a!gridLayoutColumnConfig(
            width: "DISTRIBUTE",
            weight: 1
          ),
          a!gridLayoutColumnConfig(
            width: "DISTRIBUTE",
            weight: 1
          ),
          a!gridLayoutColumnConfig(
            width: "DISTRIBUTE",
            weight: 2
          ),
          a!gridLayoutColumnConfig(
            width: "ICON"
          )
        },
        rows: a!forEach(
          items: ri!requestTypeRef,
          expression: a!gridRowLayout(
            id: fv!index,
            contents: {
              a!dropdownField(
                label: "request type " & fv!index,
                placeholderLabel: "---Please select value---",
                choiceLabels: cons!OSR_TEXT_ARRAY_REQUEST_TYPE,
                choiceValues: cons!OSR_TEXT_ARRAY_REQUEST_TYPE,
                value: index(fv!item, "RequestTypeName", {}),
                saveInto: fv!item.RequestTypeName,
                required: true
              ),
              a!textField(
                label: "item " & fv!index,
                value: if(
                  ri!requestTypeRef[fv!index].RequestTypeName = "Service",
                  index(
                    ri!serviceTypeRef[fv!index],
                    "ServiceTypeName",
                    {}
                  ),
                  index(
                    ri!supplyTypeRef[fv!index],
                    "SupplyTypeName",
                    {}
                  )
                ),
                saveInto: if(
                  ri!requestTypeRef[fv!index].RequestTypeName = "Service",
                  ri!serviceTypeRef[fv!index].ServiceTypeName,
                  ri!supplyTypeRef[fv!index].SupplyTypeName
                ),
                required: true
              ),
              a!integerField(
                label: "quantity " & fv!index,
                value: index(
                  ri!request[fv!index],
                  "Quantity",
                  {}
                ),
                saveInto: ri!request[fv!index].Quantity,
                required: true
              ),
              a!floatingPointField(
                label: "price " & fv!index,
                value: todecimal(
                  index(
                    ri!request[fv!index],
                    "Price",
                    {}
                  )
                ),
                saveInto: ri!request[fv!index].Price,
                required: true
              ),
              a!paragraphField(
                label: "comment " & fv!index,
                value: index(
                  ri!comment[fv!index],
                  "Comment",
                  {}
                ),
                saveInto: ri!comment[fv!index].Comment,
                required: true
              ),
              a!imageField(
                label: "delete " & fv!index,
                images: a!documentImage(
                  document: a!iconIndicator(
                    "REMOVE"
                  ),
                  altText: "Remove Request",
                  caption: "Remove ",
                  link: a!dynamicLink(
                    value: fv!index,
                    saveInto: {
                      a!save(
                        ri!request,
                        remove(
                          ri!request,
                          save!value
                        )
                      ),
                      a!save(
                        ri!requestTypeRef,
                        remove(
                          ri!requestTypeRef,
                          save!value
                        )
                      ),
                      a!save(
                        ri!serviceTypeRef,
                        remove(
                          ri!serviceTypeRef,
                          save!value
                        )
                      ),
                      a!save(
                        ri!supplyTypeRef,
                        remove(
                          ri!supplyTypeRef,
                          save!value
                        )
                      ),
                      a!save(
                        ri!comment,
                        remove(
                          ri!comment,
                          save!value
                        )
                      )
                    }
                  )
                ),
                size: "ICON"
              )
            }
          )
        ),
        addRowlink: a!dynamicLink(
          label: "Add New Request",
          value: null,
          showWhen: count(
            ri!requestTypeRef
          ) < 5,
          saveInto: {
            a!save(
              ri!request,
              append(
                ri!request,
                save!value
              )
            ),
            a!save(
              ri!requestTypeRef,
              append(
                ri!requestTypeRef,
                save!value
              )
            ),
            a!save(
              ri!serviceTypeRef,
              append(
                ri!serviceTypeRef,
                save!value
              )
            ),
            a!save(
              ri!supplyTypeRef,
              append(
                ri!supplyTypeRef,
                save!value
              )
            ),
            a!save(
              ri!comment,
              append(
                ri!comment,
                save!value
              )
            )
          }
        ),
        rowHeader: 1,
        validations: {
          a!forEach(
            items: ri!requestTypeRef,
            expression: if(
              or(
                isnull(
                  ri!requestTypeRef[fv!index].RequestTypeName
                ),
                isnull(
                  ri!request[fv!index].Quantity
                ),
                isnull(
                  ri!request[fv!index].Price
                ),
                isnull(
                  ri!comment[fv!index].Comment
                )
              ),
              a!validationMessage(
                message: "Please fill all the Required* fields!",
                validateAfter: "SUBMIT"
              ),
              {}
            )
          )
        }
      )
    },
    buttons: a!buttonLayout(
      primaryButtons: {
        a!buttonWidget(
          label: cons!OSR_TEXT_BUTTON_SUBMIT,
          submit: true,
          style: "PRIMARY"
        )
      },
      secondaryButtons: {
        a!buttonWidget(
          label: cons!OSR_TEXT_BUTTON_CANCEL,
          value: true,
          saveInto: ri!cancel,
          submit: true,
          style: "NORMAL"
        )
      }
    )
  )
)

Thanks