Tool tips don't appear: can't creat lingqs

LingQ was being closed for alteration a few minutes ago and now, after it’s done, tool tips (or how should I call these things?) don’t appear as I put my mouse on a lingq or a blue word. So, I can’t create new lingqs, can’t see existing translation. Can’t do anything, in fact!

Sorry about this. We’re looking into it at the moment.

Unfortunately, I have the same problem.

It works now, thank you.