[Resolved]  Vivo Mobile India — app crashes on vivoz1x

Address:

Mathura, Uttar Pradesh, 281001

I purchased vivoz1x on 14 oct2019 6gb, 128gb. After two days on installing several apps i observed app crashes in between their usage, which seriously surprised me.
Why is this happening?? This is not expected. Kindly provide the best solution or vivo is going to face the major problem in upcoming days.
I am going to raise the issue on consumer forum.