Ash here from the Shopify team. Welcome to the Shopify Community!
It sounds like you have a grey block in one of your collections that you're looking to remove. I'm happy to help out with this! In order to assist, I'll need a bit more information from you. Could you please reply back here with the following:
I look forward to hearing back so I can continue to assist!
Please share your store URL and screenshot of the issue OR you can contact us.