Lumia 1520 :: Call And SMS Filter Won't Work

I've had to install my System apps, such as Audio, Glance Screen, Network+.. and so on through Sysapp Pusher because for some reason when I do a factory reset under Cyan it removes them, which is not an issue... as long as they work.

One of the Apps I especially want is Call&Sms Filter as Iam getting spammed by cold calling and canvassing and recorded advertising.. sometimes as much as 3x a day at one point, but for some reason Filter wont work when I install it, even when I reboot my phone.. it says

"Cant open filter at the moment. Please try again Later or restart your phone"

Which ive done. I know im not the only one as many have had this issue but have solved it by a restart or rebooting the phone first then starting the app.. still wont work.

See the problem I have is that I have my own independent Alternative therapies business and i use this phone, which i answer automatically as it could be a client.. which isnt so bad if theres a live person on the other end because they just hang up as we all know cold canvassers can be charged for wasting a companies time and money.. but its the damn answering machine messages.