SEO optimization errors

Hello everybody..

I get many errors in my website in website who check SEO optimization, Like

https://www.digitalpoint.com/
https://www.digitalpoint.com

what is the different?

I get

  • Description Duplicates
  • H1 Duplicates
  • Title Duplicates
  • Canonical ≠ URL

All these violations on the home page only, how can I solve these problems.