21218: Invalid ApplicationSidPositive FeedbackNegative FeedbackERROR: 21218error-21218 page anchorPositive FeedbackNegative FeedbackERROR Error - 21218error---21218 page anchorPositive FeedbackNegative Feedback Invalid ApplicationSidinvalid-applicationsid page anchorPositive FeedbackNegative FeedbackYou attempted to initiate an outbound phone call with an invalid ApplicationSid. The application may not exist anymore or may not be available within your account.