still displays my original "Myshopify" name and won't update to my new store name

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Hello - I use the Debut theme.  For some reason anywhere that "shop_name" is used the original name of my store (the .myshopify) gets displayed and not the actual name of the store.  I changed the store name under the Settings:General but yet this has still not changed "shop_name" to my actual store name.  Is there some way to change this?