ipad air 1 airdrop

Hi,

Sorry for another question - my grandmother has airpad 1 when I want to use airdrop for multiple (more than 3) pictures between iphone 8, ipad air 2 etc.

It will start to share, then it fails with memo "not possible to transfer files from iphone 8" and then it wont even start share between airdrop devices. (or if im trasnfering until 3 pictures then it works but it will transfer only 1 picture instead of 3 what were selected)

Is there any solution for this why its not airdrop working on ipad air 1 working properly?