Pages App on ipad pro 12.9 keeps crasling.. why?

Hi CI01,

Thanks for using Apple Support Communities. We understand you are experiencing an issue with the Pages app. We want to make sure all your apps are working as expected, and we're happy to help.

We recommend checking out the resource below and working through the steps there to resolve unexpected app behavior.

If an app on your iPhone or iPad stops responding, closes unexpectedly, or won't open

Thanks