Terraform Error Invalid Index

Upon deployment of module, WSL returns this error below:

╷
│ Error: Invalid index
│
│   on .terraform/modules/pm_order_data/internal/glue_table/base.tf line 80, in resource "aws_glue_catalog_table" "parquet_table":
│   80:       for_each = var.table_columns[each.key]["columns"]
│     ├────────────────
│     │ each.key is "te_pm_order_data"
│     │ var.table_columns is map of object with 1 element
│
│ The given key does not identify an element in this collection value.

without seeing your code, it is very hard for us to help you…