Error: azure terraform

am able to run this when i select staging workspace. but when i run selecting test workspace i get the below error. Please advice.
Thanks in advance

Error: Invalid index

│ on main.tf line 28, in resource “azurerm_virtual_network” “kyndlnetwork”:
│ 28: address_space = [local.address_space[terraform.workspace]]
│ ├────────────────
│ │ local.address_space is object with 2 attributes
│ │ terraform.workspace is “test”

│ The given key does not identify an element in this collection value.

resource “azurerm_resource_group” “kyndlrsgp” {
name =“${terraform.workspace}-kyndrsgroup”
location = local.location
}

resource “azurerm_virtual_network” “kyndlnetwork” {
name = “${terraform.workspace}-networkkyd”
resource_group_name = azurerm_resource_group.kyndlrsgp.name
address_space = [local.address_space[terraform.workspace]]
location = local.location
depends_on = [
azurerm_resource_group.kyndlrsgp
]
}

resource “azurerm_subnet” “subnet” {
name = “${terraform.workspace}subnet”
resource_group_name = azurerm_resource_group.kyndlrsgp.name
virtual_network_name = azurerm_virtual_network.kyndlnetwork.name
address_prefixes = [cidrsubnet(local.address_space[terraform.workspace],8,0)]
depends_on = [
azurerm_virtual_network.kyndlnetwork
]

}