• Yes, Some sites are blocked because of the server problem.

• So,please download any VPN app, by that app you can download without any server problems.

• I suggest one app free download from play store.

• Please, find the link of that app below.

• Link :- https://play.google.com/store/apps/details?id=com.psiphon3.subscription

Hello SR Creation 

Some sites are blocked by the net provider / service provider (idea, jio, airtel ) so you can access them by using VPN( virtual private network ) .

If you wanna acess through your mobile phone then there are many app in google play store. Such as 

Hola Vpn free 

Free vpn etc

You can access them securely without any problems

All the best 

Thank you