Why did the site stop appearing in Google search?

Question

Google

Hey! Recently (so 2-3 weeks ago) launched a website . At first, it was not in the issuance of Google at all. Then I forced to crawl the site (specified sitemap in Google Search Console). The site appeared somewhere on the 5th page for the request "27 school lviv". Then the site slowly began to rise up. Got to page 2. But today the site disappeared from the search results somewhere. What could be the problem? If something important is not indicated - ask!

UPD: I just tried it through Google Chrome (before that in Firefox) - the site is on page 4, but not in Firefox.

Answer 1

via Google Chrome (before that in Firefox) - the site is on page 4, but not in Firefox.

this does not happen - the site is either in Google, or not
, connect the search console

Answer 2

search with option site:your domain

Answer 3

Not missing from the index. Searching for this query returns the school on the "my business" blog.