Need to get website URL back on Google

I am getting the message from Google on Google Search Console. My traffic has reduced since I got this message.

URL is not on Google
This page is not in the index, but not because of an error. See the details below to learn why it wasn't indexed.

Are you familiar with this problem and Google Search Console? It may have something to do with which URL is chosen canonical. Below is more error information.

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info
Coverage Page with redirect


Discovery
Sitemaps N/A
Referring page
http://www.tmbts.org/
http://tmbts.org/
http://www.dominicandatingconnection.com/


Crawl
Last crawl Jul 23, 2021, 2:53:12 AM
Crawled as Googlebot smartphone
Crawl allowed? Yes
Page fetch Successful
Indexing allowed? Yes


Indexing
User-declared canonical None
Google-selected canonical https://www.takemebacktososua.com/