WhatsApp Blocks My Number Saying App Is Not Official Even Though It Is Updated

Although my WhatsApp application is both official and up to date, I cannot log in. When I try with a different number, I can access the app without any issues, but when I enter my own number, it says, “Your app is not up to date, please download the official WhatsApp application.” This clearly shows that the issue is related specifically to my number or account, not the device or app version. I have also tried logging in from another phone, but the same error appears. I’m expecting a solution. I have deleted and reinstalled the official app multiple times, but I still can’t access my account. I kindly request that this issue be resolved as soon as possible.