add row link giving error while clicking

hi all,,, i have an editable grid interface in which when i choose a dropdown value for "subsidiary" field, the other 2 fields(businessunit and objectamount) will get autopopulated values..i need to add  multiple rows  also,,but when clicking on add row button,,iam getting error message like this:

Expression evaluation error [evaluation ID = a5ba0:92723] in rule 'i2cemea_editablegridbookingfssc' (called by rule 'i2cemea_genericwriteoffform') : An error occurred while executing a save: Expression evaluation error at function 'append' [line 123]: Insert is not supported for I2CEMEA FSSC Booking Info types

CODE:

a!localVariables(
local!Subsidiary: if(
a!isNullOrEmpty(ri!companyCode),
'recordType!{837731a9-893a-4a24-aa84-dedd7697c0b8}I2CEMEA MW GL Account'(),
rule!I2CEMEA_QR_getMWGLAccount(companyCode: ri!companyCode,processType: ri!processType).data
),
local!bussinessUnitorObjectAccount: if(
a!isNullOrEmpty(
ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{1c7cbdcb-b142-4683-8ab5-84e21b870dff}subsidiary']
),
'recordType!{837731a9-893a-4a24-aa84-dedd7697c0b8}I2CEMEA MW GL Account'(),
rule!I2CEMEA_QR_getMWGLAccount(
Id: ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{1c7cbdcb-b142-4683-8ab5-84e21b870dff}subsidiary']
).data
),
a!gridLayout(
headerCells: {
a!gridLayoutHeaderCell(label: "Subsidiary"),
a!gridLayoutHeaderCell(label: "Object Account"),
a!gridLayoutHeaderCell(label: "Business Unit"),
a!gridLayoutHeaderCell(label: "Amount"),
a!gridLayoutHeaderCell(label: "Profit Center/Franchise")

},
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: 3)

},
rows: a!gridRowLayout(
contents: {
a!dropdownField(
choiceLabels: local!Subsidiary['recordType!{837731a9-893a-4a24-aa84-dedd7697c0b8}I2CEMEA MW GL Account.fields.{90fa0177-5daf-4fea-af31-9ec00aa0fd09}subsidiary'],
choiceValues: local!Subsidiary['recordType!{837731a9-893a-4a24-aa84-dedd7697c0b8}I2CEMEA MW GL Account.fields.{aff2fcf2-4cc6-4c20-a751-e485a96e63b0}id'],
label: "",
placeholder: "--Select Subsidiary--",
value: ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{1c7cbdcb-b142-4683-8ab5-84e21b870dff}subsidiary'],
saveInto: {
ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{1c7cbdcb-b142-4683-8ab5-84e21b870dff}subsidiary'],
a!save(
ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{0443f6fa-d1cb-4935-aeb7-a81c3d9346a1}objectAccount'],
save!value
),
a!save(
ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{ecb49374-f33c-4a0d-8732-e2bff5a632b2}businessUnit'],
save!value
)
},
required: true,
requiredMessage: "Please Enter Subsidiary"

),
a!dropdownField(
choiceLabels: local!bussinessUnitorObjectAccount['recordType!{837731a9-893a-4a24-aa84-dedd7697c0b8}I2CEMEA MW GL Account.fields.{08d1c248-83de-42ca-8a06-c09bb4d8329c}objectAccount'],
choiceValues: local!bussinessUnitorObjectAccount['recordType!{837731a9-893a-4a24-aa84-dedd7697c0b8}I2CEMEA MW GL Account.fields.{aff2fcf2-4cc6-4c20-a751-e485a96e63b0}id'],
label: "",
placeholder: "--Select Object Account--",
value: ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{0443f6fa-d1cb-4935-aeb7-a81c3d9346a1}objectAccount'],
saveInto: {
ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{0443f6fa-d1cb-4935-aeb7-a81c3d9346a1}objectAccount'],
a!save(
ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{ecb49374-f33c-4a0d-8732-e2bff5a632b2}businessUnit'],
save!value
)
},
required: true,
requiredMessage: "Please Select Object Account"


),
a!dropdownField(
choiceLabels: local!bussinessUnitorObjectAccount['recordType!{837731a9-893a-4a24-aa84-dedd7697c0b8}I2CEMEA MW GL Account.fields.{9145b4cf-971d-4eee-aa6d-475f715df38e}businessUnit'],
choiceValues: local!bussinessUnitorObjectAccount['recordType!{837731a9-893a-4a24-aa84-dedd7697c0b8}I2CEMEA MW GL Account.fields.{aff2fcf2-4cc6-4c20-a751-e485a96e63b0}id'],
label: "",
placeholder: "--Select Business Unit--",
value: ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{ecb49374-f33c-4a0d-8732-e2bff5a632b2}businessUnit'],
saveInto: ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{ecb49374-f33c-4a0d-8732-e2bff5a632b2}businessUnit'],
required: true,
requiredMessage: "Please Enter Business Unit"

),
a!textField(
label: "",
value: ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{40f6b35c-19a5-4ed0-ba7e-6e22266c73df}amount'],
saveInto: ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{40f6b35c-19a5-4ed0-ba7e-6e22266c73df}amount'],
characterLimit: cons!I2CEMEA_CONS_CHARACTER_LIMIT_16,
validations: if(
rule!I2CEMEA_validationNumericalValue(
value: ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{40f6b35c-19a5-4ed0-ba7e-6e22266c73df}amount']
),
"",
"Please enter numerical value "

)
),
a!textField(
label: "",
value: ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{2639569a-0373-4f0f-a571-56978697c428}profitCenterFranchise'],
saveInto: ri!bookingFSSC['recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{2639569a-0373-4f0f-a571-56978697c428}profitCenterFranchise'],
characterLimit: cons!I2CEMEA_CONS_CHARACTER_LIMIT_20

)

}
),
addRowlink: a!dynamicLink(
label: "Add Row",
value: 'recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info'(
'recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{d7b2b208-4556-4cb0-9c3f-4b7b725e3084}fsscId': null(),
'recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{1c7cbdcb-b142-4683-8ab5-84e21b870dff}subsidiary': null(),
'recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{0443f6fa-d1cb-4935-aeb7-a81c3d9346a1}objectAccount': null(),
'recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{ecb49374-f33c-4a0d-8732-e2bff5a632b2}businessUnit': null(),
'recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{40f6b35c-19a5-4ed0-ba7e-6e22266c73df}amount': null(),
'recordType!{0fbf9c6e-1688-429c-8e78-65237aa90cf4}I2CEMEA FSSC Booking Info.fields.{2639569a-0373-4f0f-a571-56978697c428}profitCenterFranchise': null()

),
saveInto: {
a!save(
ri!bookingFSSC,
append(ri!bookingFSSC,save!value)
)
}
),
rowHeader: 1
)
)