Why I can not download this app? And what should I do with this problem

rama 1130 Said:

"Why I can not download this app? And what should I do with this problem"

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Because your iOS is incompatible. Your device has iOS 11, but iOS 13.0 or later is required.

Screenshot of your image:

Update your iPad's system software to iOS 14.4.1.

What happens when you try to update it? Are you getting any kind of error message? If so, what does it say exactly?