Bing deindexed our site, all the content is genuine and site is ranking god in Google - quotes.pub

Our site quote.pub is not showing in bing index. Its genuine quotes collection site. We are ranking good in google and getting good traffic too. Can I know whats wrong and how to fix it?
We tried to ping from contact form too but no reply there.

When we search site:quotes.pub in bing no results.