HaDashboard get 500 Internal Server Error

Hi I updated appdaemon by typing “sudo pip3 install --upgrade appdaemon” in consol.
On device where I was logon on the HAdashboard is working, but on device whare I dont was logon I now get this error when I open site i browser:

500 Internal Server Error

Server got itself in trouble

I dont get any error in logfiles. What can be the problem?

before you update, check out breaking changes.
close all dashboards and appdaemon.

after update restart appdaemon
after that restart all dashboards and in case off an error check your logfiles.