What do you mean by that? =) I checked for new IPs, then went to /smb/web/edit and adjusted them. After that a deleted old ones from here - /admin/ip-address/list/. Just as I said, that's not the problem. Problem was in Apache and nginx. For some reason they didn't realize that IPs are changed...
It all started after my hoster decided to move his servers to another data-center. Everything is ok, only thing that changed for me is IP-address. And that's where the problem begins.
First, my sites don't work at all.
Second, site preview service shows an error (Error occured. couldn't...