Here’s my list of restore points and I use the latest version and NG is running:

http://www.screencast-o-matic.com/screenshots/u/Lh/1432903471236-59032.png

Some of these reported problems could also be system related.
Even if it’s working without a problem on my system, yours may be different.
There may well be conflicts with some of the other programs or hardware installed on your system.
I suggest you use the Avast Support Tool to get to the bottom of your problem.
More information about the tools use can be found at:
https://www.avast.com/en-us/faq.php?article=AVKB33#artTitle