Just to note -
The Avast A/V program must have had an update 20 July 2016 so that it now detects Expertlotto as a potential virus threat.
I have advised them that their program is detecting EL as a false positive - whether they do anything about it is another matter.
If you have this as an issue go to the 'Chest' - restore the program and then place it in Exclusions.
cheers
falcon