Why does the search engine classify the site as malware sites when clicking on authorization/registration links?

Question

css

The situation is this:
There is a website.
Now it is under development, but the main modules are ready. The site is written on CMS Wordpress and is open to the public.
When you click on the registration and authorization links, a message pops up from the search engine:
Beware, fake site!
Visiting mysite.com may result in the installation of malware or the theft of your personal information (such as passwords, phone numbers, and credit card information).
This error pops up only in my Chrome and Opera browsers. Everything works as it should for the developer
. What could be the reason and how to fix it?
Thanks:)

Answer 1

$(window).scroll(function() {
if($(window).offset().top == %необходимое значение%) {
%менять цвет%
}
);

Answer 2

Perhaps your registration and authorization goes through https
Remove unnecessary lines in wp-config or some kind of plugin