Patrick

Site URL: http://comohandcraftedgifts.com
While stumbling around trying to find out why I am not getting many visits to my site as a result of web searches, I discovered that roughly one half (108-215) of the pages have not been indexed, per Google Search Console.  I'm not sure what the reason(s) may be, it appears that it's not because of errors, but some other reasons.  I would appreciate it if someone could perhaps give me an idea of what the issue(s) could be, I thought each page was created basically the same using the template provided by Squarespace.  Thanks!
Patrick L.

This is because Google is not aware of any of your products and cannot serve them up in results. 
I can see two issues that you may want to address:
Your shop pages have not been indexed, and Your homepage has insufficient content. This means there is very little for Google to index.
Homepage content
Your homepage doesn't contain any keywords that customers are likely to be searching for. As there is very little information on this very important page, Google has indexed "Shipping included in purchase price. Products will be shipped 1-3 days after order is placed. For local purchases, save 10% on your order by arranging local...". 
I recommend that you either set the shop page as the homepage, or add some Summary Blocks to the home page that show some of your products, such as your new arrivals or biggest sellers.
Indexing the site
When you have updated your homepage content, ask Google to reindex your site using your site map. I've checked your sitemap and it appears to be correct, with updates to products in Sept and Oct, so submitting this should allow Google to see all the site’s publicly available page URLs and image metadata. 
To do this, log on to the Google Search Console dashboard, select the site you’d like to index from the property menu in the top left corner. Click Sitemaps. Under Add a new sitemap, enter your sitemap URL. This is https://comohandcraftedgifts.com/sitemap.xml Click Submit to request Google index your site.   If this post has helped you, please click a 'Like' or 'Thanks' icon below  ⬇️