Dub add stopped working

[yoz75]

I use ldc 1.43.0 and everything was pretty fine, but a couple of 
days ago **dub add** just stopped working... It just waits 
something like minute or two and drops this:

**Warning Failed to get versions for package dlangui on provider 
registry at https://code.dlang.org/ (fallbacks registry at 
https://codemirror.dlang.org/): Failed to download 
https://code.dlang.org/api/packages/infos?packages=%5B%22dlangui%22%5D&include_dependencies=true&minimize=true
        Error Could not find package 'dlangui'.**

And this happens to every package I'm trying to install!