Why can't you access the site using a direct link through Google?

Question

Search Engine Optimization

Hello, I have such a problem. What if you go to the site via a direct link (we drive the address into the line ourselves), then it enters the site, but if you do this through a Google search, it gives me such an error. What to do?

Answer 1

Obviously, therefore:
And who added this code to the main page and why, the question is for you.

Answer 2

what address are you entering? door or OVFGroup?