Error filtering template

[ify_nwabuokei]

I need assistance on how I can fix this error on my website

Error filtering template: Item (Magento\Catalog\Model\Product\Interceptor) with the same ID "1201" already exists.

[Sunil Patel]

Hello @ify_nwabuokei 

seems like same product adding into two times into collection.

Either do group by product_id or print a query and check product id comming two files or more times.