Instagram does not explicitly state the reason for account deactivation, but it mentions that it is due to community guidelines or terms of use violations. Possible reasons may include: Engaging in illegal activities such as buying or selling illicit goods. Spreading hate speech or posting hateful comments. Posting explicit content. Posting graphic violence. Using prohibited words within the Instagram environment, whether in videos or captions, can negatively affect the account. Using third-party applications to access Instagram.