Windows 10 WhatsApp doesn´t work today

Hello,

My system is:

Edition Windows 10 Home
Version 21H1
Installed on ‎14/‎08/‎2020
OS build 19043.1288
Experience Windows Feature Experience Pack 120.2212.3920.0
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I installed Whatsapp version 2.2140.7 (WhatsAppSetup) from more then three months ago.
It works good. Today it doesnt work éven then i unistall and install again.
Can someone help me about this?

Thanks and best regards to you all

Curious