aryanvr Just to be clear, there are no errors in Console? Have you spoken to your host about downtime either?
If there's no errors in console or downtime from your host, then you need to focus SEO efforts to try and improve the site's ranking and then grow traffic again. Our SEO tools should help you get started on that: https://pubdash.ezoic.com/nicheiq/overview
Aside from that, were you purchasing traffic in the past and you've now ended the campaign? That'd be something else that could cause a traffic drop.