AWS EKS nodeGroup stuck at 'deleting' status

I am using terraform to deploy the AWS infrastructure. I stuck at EKS nodeGroup is deleting status . The health shows that IAM role is not found, I created that role again and tries to update nodeGroup from CLI and it says

"An error occurred (ResourceInUseException) when calling the UpdateNodegroupVersion operation: Nodegroup cannot be updated as it is currently not in Active State"

I am unable to delete cluster and nodeGroup from the CLI and from the terraform as well. In my terraform script nodeGroup have instance type is (SPOT - t3.medium) but when I checked nodeGroup from CLI I saw that the instance is ( on-demand t3.large). There is no such config in my terraform code.

main.tf: 
module "vpc" {
  source = "./modules/vpc"
  cluster_name = var.cluster_name
}

module "eks" {
  source = "./modules/eks"
  cluster_name = var.cluster_name
  private_subnet_ids = module.vpc.private_subnet_ids
  subnet_ids = module.vpc.subnet_ids
}


module "karpenter" {
  source = "./modules/karpenter"
  eks-nodeName = module.eks.eks-data
  eks-connect-provider-url = module.eks.aws_iam_openid_connect_provider
  eks-connect-provider-arn = module.eks.aws_iam_openid_connect_provider-arn
  cluster_name = module.eks.cluster_name
  private-nodes = module.eks.aws_eks_node_group-private-nodes
}

nodes.tf
resource "aws_eks_node_group" "private-nodes" {
  # count            = var.delete_nodegroup ? 1 : 0
  cluster_name = aws_eks_cluster.cluster.name
  node_group_name = "private-nodes"
  node_role_arn = aws_iam_role.nodes.arn
  
  # subnet_ids = [ 
  #   aws_subnet.private-eu-west-1a.id,
  #   aws_subnet.private-eu-west-1b.id
  #  ]

  subnet_ids = var.private_subnet_ids

    capacity_type  = "SPOT"
    instance_types = ["t3.medium"]

   scaling_config {
     desired_size = 1
     max_size = 6
     min_size = 1
   }

   update_config {
    max_unavailable = 1
   }

   labels = {
     role = "general"
   }

  
depends_on = [
    aws_iam_role_policy_attachment.nodes-AmazonEKSWorkerNodePolicy,
    aws_iam_role_policy_attachment.nodes-AmazonEKS_CNI_Policy,
    aws_iam_role_policy_attachment.nodes-AmazonEC2ContainerRegistryReadOnly,
  ]

  # Allow external changes without Terraform plan difference
  lifecycle {
    ignore_changes = [scaling_config[0].desired_size]
  }

used this command to delete the nodeGroup aws eks delete-nodegroup --cluster-name eks-gd360 --nodegroup-name private-nodes --region eu-west-1

I have followed these docs: https://docs.aws.amazon.com/eks/latest/userguide/delete-managed-node-group.html

deleting EKS cluster https://docs.aws.amazon.com/eks/latest/userguide/delete-cluster.html#w237aac13c27b9b3