The emergency update task is not related to the aswSnx.sys (sandbox driver), so it the emergency update task is unlikely to be the issue.
Why the aswSnx driver failed to load is the mystery.
ry a repair of avast:
XP - Add Remove programs, select 'avast! Anti-Virus,' click the Change/Remove button and select Repair, click next and follow.
Vista, win7 - Control Panel, Programs & Features, uninstall a program, select 'avast! Anti-Virus,' click the Uninstall/Change and select Repair, click next and follow.
You may need to reboot after the repair.
This has in the past resolved this out of sync issue between reported and actual VPS version.