Having trouble in receiving viber and skype calls. I can't receive any call unless the app is open

[Muhammad Hamza2]

Lumia 535 - Having trouble in receiving viber and skype calls. I can't receive any call unless the app is opened as soon as lock screen appears we cant recieve calls just a pop up afterwards of a missed call . anyone help plz

 

[vipme]

Move Viber and Skype apps from SD card to phone memory.