I have a site on Shopify that I rebranded/renamed. I did a URL change but did not set up an entire new site. I ran a Semrush audit and it it saying I have over 1.1k backlinks, but over 800 of them are from the previous url. Is this going to cause an SEO problem? If so, do I need to create redirects for them all? How would I even go about doing that?