Can't get a link to share an album.

I have Adobe Lightroom 6.3.1 on my desktop.  A few weeks ago I was able to obtain a link to share some of my albums.  It was great.  I tried the same thing yesterday, but the system "responded" by saying that I couldn't get a link because I was "off line."  I'm not all that trech savvy, and I do not understand this.  I have access to the Internet and so on, but they won't give me a link.  What's up?