If you have lost access to your Facebook account due to being banned or suspended, you need to learn how to recover a suspended/disabled Facebook account. In many cases, you will need to reactivate your account so you can be seen by your friends again. If you've been permanently disabled, you will need to set up a new one. You can try to get help from different forums or friends who have recovered their accounts in the past and also you can read our article here you will definitely find the correct method.
For more read - https://onlinegeeks.net/facebook-disabled-my-account-how-to-enable/