Error while executing the query: Query is not valid
Traceback (most recent call last):
  File "/app/app/data_pipeline.py", line 725, in run_pipeline
    updated_jinja_query, context = await prepare_query_with_variables(step["query"], variable_values)
  File "/app/app/data_pipeline.py", line 1774, in prepare_query_with_variables
    raise ValueError("No variable syntax found. Use double curly brackets {{ }}.")
ValueError: No variable syntax found. Use double curly brackets {{ }}.