Help with aws eks to mount aws secrets

So i have aws secrets which store environment values, i have created whole infrastructure using eks vpc all in terraform , i have used [login to view URL] to create csi secret aws provider with iam and everything but it gives me error saying service account is required and when i refer to its name it says it is in kube-system namespace but my app and pod need to run in production namespace, i just want you to fix terraform code so it actually mounts the secrets as environments variables. Thanks