What exactly does a citation alert from Google scholar mean?

I have a Google scholar profile and this morning, I got the following email (anonymised):

Scholar Alert: New articles in my profile

[CITATION] Here is the paper title
OlafBlub - The Proceedings are here …, 2015

So first I thought that someone has cited the paper mentioned in the email, but when I had a look, there were still zero citations :( Then I thought, okay, maybe this article was added to my list of articles, but then I realised that it was already there before. So what exactly does this email tell me?