I couldn’t restore my Whatsapp chat history

Sounds like you need to contact WhatsApp, because if you are restoring from within their app and the app can't find the backup, well that's their issue to contend with.

nadermg wrote:

I have been backed up my WhatsApp chat history to my iCloud storage which is 50GB, Whatsapp backing up Daily. How can I restore my chat history. WhatsApp saying no found back up history

Did you restore from an iCloud backup and the chat history didn't return?

Happy to hear you got it resolved.