Entered code in colleciton page, don't know how to remove it..

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Hello Shopify community.

I've been trying to change the collection page image on DEBUT, and entered a code.

Not only have I not been able to change the header image on the collection page but the code I entered keeps appearing on the bottom of the screen (as follows on screenshot).

Please help! I'd like to remove this at once!


If anyone knows how to change the collection page header without changing the collection list icon that would also be appreciated!