Help me in solving SQW29 problem

help
,
1

My issue

Runtime error

My code

/* Write a query to output the following
- product_type, product_id, units_sold and month of sale for all high margin products sold in the year */
SELECT 
    dps.product_type, 
    dps.product_id, 
    ms.units_sold, 
    ms.month
FROM 
    division_product_sales dps
JOIN 
    monthly_sales ms ON dps.month = ms.month
WHERE 
    dps.margin_category = 'High_Margin';

Learning course: Database management systems
Problem Link: Project - JOIN and Filtering in Database management systems