There are no error messages, just the site sometimes does not open on the home Internet, while the site is always accessible from mobile.
It's like something is blocking my access to the site.

P.S. This problem is not only with the freebitco site, there are other sites with the same problem. I'm trying to figure out the reasons and find a solution.
Are you using the same phone and just switching from Wi-Fi to mobile internet or is it another device?