File mysteriously deleted

So I have been using Creative Cloud for storage for quite some while, but today I turned my computer on and I got the message (welcome.ai is deleted) from creative cloud. It was a small little welcome message for a shared folder I made for a magazine I am working for. The problem is that that message did not only mean the deletion of my file online but also offline, which means it doesn't exist anymore.

Please Adobe, give an explanation for this weird occurence.