"Launch" icon greyed out, inoperative

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I think the title/subject says it all. In spite of the pop-ups telling me this has already been answered, I can’t find it.

Hard to say - it would be helpful if you could provide the type of client, browser (if applicable) and operating system. A screen capture of what you are seeing would be helpful, also.

Found it. Somehow the entry was missing any url. It was for a web site for which my wife and I each have our own accounts, so I compared the two entries to spot the error, then simply added the url manually to the entry that was missing it.