If no recent or older iPad data backup, that note is gone.
Unfortunately, your iPad is too old, today.
Apple ended support for all 8-10-year old iOS devices nearly 5 years, ago, in 2016.
Third party app developers abandoned and stopped supporting these 8-10-year old iOS devices nearly 3 years, ago, in 2018.
There are, virtually, NO MORE third party apps available from the iOS App Store, any longer!
Third party compatible apps for such old devices are few and far between, now, in 2021.
This includes apps for both iOS 9 AND iOS 10 devices!
Sorry, but this is the reality for ALL 8-10-year old AND OLDER iOS devices now. Especially now in 2021!
I am sorry that you had to learn all of this, but this does not change any of the facts regarding these very old iOS devices.
Sorry.