WhatsApp Says The Version on My Phone Is Fake, I Can't Log In

I encountered such a problem while logging into the WhatsApp application and WhatsApp is very important to me. Help as quickly as you can. I reset my phone and after resetting I encountered this error. I cannot log in in any way. I was using it without any problems before the reset, but I cannot use it anymore. I tried to reach you via e-mail, but you did not respond to that either, please help, I'm pretty sure I downloaded it from a safe place, actually, it's everyone's app.