Error while installing hashicorp/azurerm v2.70.0: unexpected EOF

I’m using Ubuntu LTS 20.04. Trying to build AKS. After creating a resource group in Azure, while trying to import it, it gives me this error. Any idea?

$ terraform version
Terraform v0.15.4
on linux_amd64

$ echo $AZURE_RESOURCE_GROUP_ID
/subscriptions/23431111-2222-111-8910-2ee44a5161we/resourceGroups/my-rg

$ terragrunt import azurerm_resource_group.k8s "$AZURE_RESOURCE_GROUP_ID"

Initializing the backend...

Successfully configured the backend "azurerm"! Terraform will automatically
use this backend unless the backend configuration changes.

Initializing provider plugins...
- Finding hashicorp/azurerm versions matching "~> 2.55"...
- Installing hashicorp/azurerm v2.70.0...
╷
│ Error: Failed to install provider
│
│ Error while installing hashicorp/azurerm v2.70.0: unexpected EOF
╵

ERRO[0035] 1 error occurred:
        * exit status 1