Here is a logcat of a Google Calendar crash: http s://pastebin.com/raw/0R215mKK (You have to fix the link, it didn't allow me to post a real link)
Is there something wrong with my /data partition?
When I look into /data/user/0 using TWRP, I only see weird folders with names like "0pOkmd35rGfU....", but nothing like com.google.android.calendar.
Is that common for that folder?
Most apps crash on startup like Google Calendar or Google Chrome, but all preinstalled software works fine and additionaly all software works that I installed before the first reboot, e.g. Whatsapp or Telegram.
Almost all apps that I install now, crash immediately on startup except for a few (e.g. KDE Connect).
Any ideas, what could be wrong with my device?