Found this topic via search. I'm facing the same issue on Windows 7 64-bit SP1. Avast version 22.7.6024. Every boot, it says "Sorry, we've crashed". No other security software on this system. I had previously applied the beta software when the Anti-Exploit shield was preventing my VirtualBox VMs from running. See thread here:
https://forum.avast.com/index.php?topic=319869.15That issue was resolved by Avast, so I re-enabled all shields. Now I've been getting this crash message for about 2 weeks. After posting this, I'll try doing a fresh install to see if that helps.
[EDIT] For those who may find this via search, I first tried doing a repair from within the Avast interface. No success. So, I then downloaded the offline installer for the latest version, uninstalled Avast, rebooted. Then before installing, I opened up the registry editor, and removed all Avast entries. While doing that, I noticed some bogus entries in the registry, at least one of which seemed to have been added by Avast. I could easily tell they were bogus; for example, one was under HK_CURRENT_USER, and would have been "Software" except the first character was garbled - displayed as some graphic character. So, I got rid of about a half dozen of bogus entries.
I then installed Avast using the offline installer. After rebooting, everything is now running error-free.