unable to execute terraform apply in azure devops

Question

I am trying to execute terraform scripts through Azure DevOps. I am not able to apply and validate through different tasks, though terraform plan is successful terraform apply is failing.

##[error]TypeError: Cannot read property 'includes' of null

Here are the terraform tasks which I am using. I have tried two different tasks

1.

- task: ms-devlabs.custom-terraform-tasks.custom-terraform-release-task.TerraformTaskV2@2
  displayName: 'Terraform : apply -auto-approve'
  inputs:
    command: apply
    workingDirectory: '$(System.DefaultWorkingDirectory)/Terraform'
    commandOptions: '-auto-approve'
    environmentServiceNameAzureRM: 'ps-vs-sc'
    backendAzureRmResourceGroupName: '$(rgname)'
    backendAzureRmStorageAccountName: $(strname)
    backendAzureRmContainerName: $(tfContainer)
    backendAzureRmKey: '$(storagekey)'

- task: TerraformTaskV2@2
  inputs:
    provider: 'azurerm'
    command: 'apply'
    workingDirectory: '$(System.DefaultWorkingDirectory)/Terraform'
    commandOptions: '--auto-approve'
    environmentServiceNameAzureRM: 'ps-vs1-sc'

Here is my terraform file.

provider "azurerm" {
features {}
}

terraform {
  required_providers {
    azurerm = {
      source = "hashicorp/azurerm"
      version = "2.74.0"
    }
  }
}

data "azurerm_api_management" "example" {
  name                = var.apimName
  resource_group_name = var.rgName
}

resource "azurerm_api_management_api" "example" {
  name                = var.apName
  resource_group_name = var.rgName
  api_management_name = var.apimname
  revision            = "1"
  display_name        = "Example API1"
  path                = "example1"
  protocols           = ["https"]
  service_url         = "http://Ip_address"
  subscription_required  = true

  import {
    content_format = "openapi+json"
    content_value  = #{storageaccountlink}#
     
}