"Pages quit unexpectedly"

Hi,

I'm using macOS Big Sur (V. 11.2.2.) MacBook Pro, M1, 2020. I've recently come across the following message while opening these applications: Pages, Keynote, and Numbers. The message is as such "Pages quit unexpectedly".

I don't know what this is and how to get the apps fixed. I reinstalled Pages and rechecked, still the same problem.

I'd appreciate it if anyone helps me out with this as I need the to use the Pages application urgently.