Accidentally deleted product category

Hi everyone,

I’m in quote of a pickle because I accidentally deleted a product category in Magento.

I can still see the category on my main page but I cannot go to any subcategory because I get 404 error. All my products still exist.

I created a new product category but I do not know how to link my existing products to the new subcategories.

I appreciate any help ASAP.

I’m as new as they get to Magento (that explains how I deleted the product category) so please assume I know nothing and need step-by-step instructions.