BPCSS2075E You cannot create more than 5 API keys for a user
Explaination
Admin generates the API key for the user which they use to create the token for running the APIs. For any user, the Admin can create only up to 5 keys.
Action
Ensure that you have not already generated 5 API keys for the user. If this is the case, then a new API key cannot be created for that user.