XC60 RTI-Navi – No voice output?!

Hello everyone, since Tuesday we have our Dickelch and are also super satisfied with it Only since today there is a little problem (I hope small…): The RTI-Navi doesn’t want to say anything anymore! All ads are quite normal, the route is calculated etc., but it simply does not have a voice output. Not even the “route guidance starts now” at the beginning of the navigation. The volume of the navigation is under “line options” to 11, that probably is loud enough, especially since the radio is usually off anyway. Even if you try to test the volume with the menu point below the whole thing does not work. It just remains silent. What I have already tried: Cancel route guidance (deleting route plan), RTI completely switched off via main menu, DVD from the drive, car is finished, 2 min. waiting, vehicle unlocked, ignition is inserted, DVD is inserted again and the route is calculated again. Unfortunately, did not bring anything to me… On Wednesday the Navi worked perfectly, yesterday and the day before I can’t say anything, I didn’t use it. I hope that it’s just a small error of operation, Matt, I’s friendly, I’ll see you guys on Monday.