How can I resolve the Liquid error on my online store?

Store Design
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1

HEY THERE ALL OF SUDDEN MY SHOP SAID Liquid error (sections/featured-collection line 67): Expected handle to be a String but got ProductDrop

HOW DO I FIX IT? THANK YOU SO MUCH

2

@ANONYMOUSOURCE send preview link.And which section

3

Right here

4

www.Rossel.la on the homepage