Site article not showing in Google news

Hello folks
Last year i got approved by Google news, it worked fine few days my site was getting impression but due to some issues I reset my wordpress site also changes server and from that day suddenly my website articles not showing in google news.

Can anyone tell me where is the fault, why my site is not showing in google news?

Did you change the domain post URLs? What method did you use to migrate your website? If your site is not getting updated frequently, the site may deteriorate in its ranking. There are some reasons like slow speed, pages not accessible?