Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Apple To Introduce New iPad At September 10th Keynote
We have known about Apple’s September 10th media event for a couple of weeks now and it is all but confirmed. Today Bloomberg has reported that alongside the iPhone 5S and the iPhone 5C we will see Apple introduce the new iPad.
The Cupertino, California-based company plans to introduce new versions of its phone and tablet at a Sept. 10 event, a person familiar with the matter has said
The quote from above was taken from Bloomberg’s recent article regarding Apple’s plans for the first retail store in Tokyo since 2005 but since this is such a small mention and very brief it seems it could be a mistake/error.