Azure CLI - acb.yaml does not exist

I am trying to create a scheduled ACR task to delete old images from storage using this command:

PURGE_CMD="acr purge --filter 'worker:.*' --untagged --ago 1d"
 az acr task create --name remove_old_images_worker --cmd "$PURGE_CMD" --schedule
 "0 0 * * *" --registry registry --context /dev/null

But it returns me an error with this:

acb.yaml does not exist.

And what is also interesting is that it worked for a similar task just a couple of days ago.

After some investigation, I solved this problem using Terraform as follows:

resource "azurerm_container_registry_task" "acr_purge_task" {
  name                  = "scheduledAcrPurgeTask"
  container_registry_id = azurerm_container_registry.registry.id
  platform {
    os           = "Linux"
    architecture = "amd64"
  }
  encoded_step {
    task_content = <<EOF
    version: v1.1.0
    steps:
    - cmd: acr purge --filter '.*:^((?!prod|dev).)*$' --untagged --ago 7d
    disableWorkingDirectoryOverride: true
    timeout: 3600
    EOF
  }
  agent_setting {
    cpu = 2
  }
  timer_trigger {
    name     = "t1"
    schedule = "0 0 * * Tue"
    enabled  = true
  }
}