I'm not able to download any app on my phone (Lumia 535). The preexisting apps are the only apps I am able to update or reinstall. After I select the install button in the store it goes to the downloads section and it gives the message that its pending and never downloads. After some time it says " Attention required. Please try again." Whereas If i reinstall or update whatsapp or the ola app it gets done in a jiffy.
What could be the problem and what is the solution?