ErrorApplication error91101: Subscription could not be createdPositive FeedbackNegative FeedbackTwilio Event Streams DocumentationEvents Descriptiondescription page anchorPositive FeedbackNegative FeedbackSubscription creation failed Possible causespossible-causes page anchorPositive FeedbackNegative Feedback Event types are duplicated Description is empty Possible solutionspossible-solutions page anchorPositive FeedbackNegative Feedback Ensure event types are not duplicated Description is not empty