I cant close "Lightroom", and cant shut down or restart.....

Hi DrDanielss,

If an app is unresponsive, use the steps from the following articles:

Close an app on your iPhone or iPod touch

If an app freezes or quits unexpectedly on Mac

To help with overall performance, it's a good idea to make sure you're running the latest software versions on your devices and that your apps are up to date.

How to manually update apps on your Apple device

If you need more help, reply to this message.

Best regards.