Style chooser

Yesterday when I was driving back from work, my gearbox got stuck in the 3rd gear, while shifting down from 4th. I can still reserve, go in neutral or park position. But the gears 1,2 and 4 cant be used/selected anymore.

I checked it with my workshop where I usually go. The computer displayed the following error messages:

P0760 scvs malfunction
P0703 torque converter sw-mal

After resetting, they came back when you start the engine. He told me, that I have to repair the gearbox...