Error in Flow

n8n :

Link :

https://app-staging.indie.money/service?id=0x47F730D4a48353792b7C6248c4ae3FA5AaEc78a5&chainId=84532

File :

Payload :
{

"orders": [

{

"orderId": "ORD-LOW",

"customerId": "C101",

"productId": 1,

"quantity": 1,

"customerEmail": "alice@company.com",

"isBusinessEmail": true,

"taxRate": 0.08,

"isValid": true

},

{

"orderId": "ORD-MED",

"customerId": "C102",

"productId": 2,

"quantity": 3,

"customerEmail": "bob@gmail.com",

"isBusinessEmail": false,

"taxRate": 0.10,

"isValid": true

},

{

"orderId": "ORD-HIGH",

"customerId": "C103",

"productId": 3,

"quantity": 25,

"customerEmail": "charlie@company.com",

"isBusinessEmail": true,

"taxRate": 0.18,

"isValid": true

},

{

"orderId": "ORD-CRIT",

"customerId": "C104",

"productId": 4,

"quantity": 99,

"customerEmail": "scammer99@yopmail.com",

"isBusinessEmail": false,

"taxRate": 0.00,

"isValid": true

},

{

"orderId": "ORD-LOW2",

"customerId": "C105",

"productId": 1,

"quantity": 2,

"customerEmail": "david@startup.io",

"isBusinessEmail": true,

"taxRate": 0.05,

"isValid": true

}

]

}