WhatsApp Account Suddenly Banned on Oppo Phone

I have been using my WhatsApp account for about two years on my Oppo CPH2667 device without any problems. However, since yesterday my WhatsApp account has been blocked without any explanation, and I do not know the reason. My WhatsApp number is +91 9606039*** and my profile name in the app is “Mahaveer inovation”. I have not knowingly violated any rules or changed any unusual settings on my Oppo phone before this block happened. I request that my WhatsApp account linked to this number be checked and unblocked as soon as possible, or that I am at least given a clear explanation of the reason for the block so I can avoid this situation in the future.