Avira update failed - Which update file is correct?

Avira update failed - Which update file is correct?

I work with Windows 8.1. and until 2 days ago Avira was still updated every day. Today it failed several times.

Error message 500 App status not transmitted

In addition, I have more questions:

1. is it correct that the update is called from 3 different places and if so, why?

2. my firewall also tells me that A (so only the letter is shown) wants to update and likewise wants to change a system setting, here are the exact locations:

c:\Windows\Temp\{DeF6BE4D-537C-44Bd-8FDF-16...}\cr\avira_de__fm.exe

A makes settings to {21098ed5-59e9-4203-b79e-63...} that cause it to run at every computer startup

Application from:

C:\Windiwos\Temp\{8242ICCA-1BDA-42FC-BB5F-E1223...}\be\Avira.OE.Setup. Bundle.exe

Since this seemed very strange to me, I did not allow it, because already the update file from the Avira directory and an update file from the Avira-Temp directory are started.

If it is a correct update, what kind of update file is it and what kind of program or service should be started at startup?

Translated with www.DeepL.com/Translator (free version)