Why avast block MsMpEng.exe saying it want steal avast brower log?

Avast warm me this :
“MsMpEng.exe is attemping to access your login credentials in Avast Secure Brower Application”
MsMpEng issue

I find on web that MsMpEng is related to windows Defender, i reactivided it and was doing a scam with it do see the diff with avast.
i also some minutes before the warm, subscribe to avast Mail Guardian.

So i don’t know where is the malware / breach .