Can't Log into WhatsApp: Official App Error Persists Despite All Fixes

I have not been able to log into my WhatsApp account for months. When I first received the official application error, I deleted Aero WhatsApp and even removed it from my files. I downloaded the official WhatsApp and logged in. A day later, the application automatically logged me out and gave me the official application error again. I contacted support multiple times via email, but I only received automated responses, and my problem was not resolved.

I reset my phone, which caused the IMEI number to be deleted. I paid to have it restored. The problem is not with my phone, as other numbers' accounts can log in on my device without issues. However, when I enter my number, the official application gives an error. I deleted my WhatsApp account, but I still cannot use it. There is no problem with the number itself; I can log in to my account on different phones, but for some reason, I can't log in on my own phone. I have no unofficial applications on my phone, and I can't use WhatsApp Business either. Please fix this issue. There is no problem with my phone or number.