Problem with python script: unsupported

Tried that also. I also deleted some columns from my table as i thought, it would cause an issue like here.

Current snippet is:

for item in stock_items:
  print(f"processing {item.name}")
  # create seatable row
  sql_query = f"select Id, Name from Produkte where id = '{str(item.id)}'"
  query_result = base.query(sql_query)