WhatsApp showing white blank screen🥹

I have not been able to access WhatsApp for 3 days. When I try to open the app, it just shows a blank white screen. Could there possibly be a bug? I am using an iPhone XS and I have tried the following:

(1) Restart the phone

(2) Updated to the latest version of the app

(3) Updated my phone’s iOS to the latest version

(4) Switching off all the WhatsApp settings and switching it back on

Reinstalling may not be an option for me because my chats have not been backed up since May 2022. Please help