Hopefully someone from the avast! team will be able to shed some light on this…
I hope so 
I really love avast and it would be a shame to have not choice but not to use it (especially after paying for a year a few days ago -.-).
Not to worry, someone will find a solution/
I really do hope so xD
Excellent news guys!
I ran a malwareBytes full system scan and removed all the PUP etc that were detected. I then repaired my avast and BAM! Firewall is up and working.
Thanks guys for all your help.