No acces to iCloud in Pages BETA on Ipad air

I made some documents on my Imac by Pages BETA and I want to edit them later on my iPad.
But my Ipas says I have to switch on Icloud in my Pages settings (in ipad).

I did, but I won't help.

I cannot open a document in the Cloud with Pages BETA on my iPad air.

What am I doing wrong?