How can I fix a site map issue after changing themes?

Hello community!

I am having some issue with the site map. I have recently switched from Vintage theme Debut to 2.0 Theme Dawn.

I have resubmitted the site map to Google search console, but the blog section from the vintage theme is still listed on the site map. Also when I do run seo site checks the blog page comes up.

I created the blog page on Debut theme and then remove the blog page.

The customer service from Shopify told me to wait - that google would need from 48 to 72 hrs to recrawl the website but the new store is live for 2/3 weeks now.

Is there a way to fix this?

Thank you