My external SD card seems to be broken. I removed it and inserted a new one.
Now the apps don't work any more. That's all right.
But: I can't uninstall or re-install the apps any more.
If I try to, then the app store seems to crash. I just get the message "App store terminated" (translated from german to english).
It's ok that the data from the sd card is lost.
But: How to get the apps working again?