Terraform volterra problem

Hi Community,

I need some help:

I have a local generated certificate.pfx file and a password.

Where is the problem?

locals {
  certificate_content = filebase64(var.certificate_file)
  password_content = base64encode(var.certificate_password)

  password_string_format = "string:///${local.password_content}"

  string_format = "string:///${local.certificate_content}"
}

resource "volterra_certificate" "certificate-test" {
  name        = "certificate-test-03-26-25"
  namespace   = "tf-dev"
  description = "Simple Description"
  disable     = true

  private_key {
    clear_secret_info {
      url = local.password_string_format
    }
  }

  certificate_url       = local.string_format
  use_system_defaults   = true
  disable_ocsp_stapling = true
  
}

volterra_certificate.certificate-test: Creating...
╷
│ Error: error creating Certificate: Creating object: Post "/public/namespaces/tf-dev/certificates": unsupported protocol scheme ""
│ 
│   with volterra_certificate.certificate-test,
│   on certificate.tf line 10, in resource "volterra_certificate" "certificate-test":
│   10: resource "volterra_certificate" "certificate-test" {