Maybe uninstall avast. Install and update the game.
Use Avast Uninstall for complete uninstallation and then install again avast from the scratch.
Maybe you’ll to create the dump, here Vlk explains how to create a dump file here: http://forum.avast.com/index.php?topic=22636.msg187340#msg187340 and here: http://forum.avast.com/index.php?topic=23283.msg193594#msg193594 
http://www.microsoft.com/technet/sysinternals/utilities/ProcessExplorer.mspx
This is a Chest (Quarantine) error. Don’t worry by now.
No. The chested file (kernel32.dll) is there for backup purposes. It’s not being accessed by the game or causing the crash in any way.