You may encounter this error message:
An error occurred: Bot cannot be decrypted. This means that you have reset your password without a backup.
This happened because you enabled bot data encryption and have since changed your password without providing the recovery token. Unfortunately, your bot source cannot be accessed anymore. The bot, however, can still continue to run.
What is Bot Data Encryption?
Bot data encryption helps you ensure that no one but you can access your bot source, even if, for example, your e-mail account is compromised. It can be accessed under 'Security' in your Settings.
When enabling bot data encryption, you are asked to download a recovery token. This recovery token must then be included when resetting your password. If you do not provide the recovery token, your bot sources will be locked, resulting in the error message that you see above.