Twitter banning an account is not without reason, it looks like the banned account is detected doing Spam or the account is reported by several users to Twitter.
My account was banned because I posted or retweeted too fast in a few minutes.
Try to appeal if it's a system error at https://help.twitter.com/en/managing-your-account/suspended-twitter-accounts
usually the system banned randomly. I have already tried the appeal and my account is reopened