if no identities are enrolled then show alert message

GMERemittance/Module/BiometricAuthModules/BiometricAuthentication/User Interface/Wireframe/BiometricAuthenticationWireframe.swift

@@ -103,7 +103,22 @@ extension BiometricAuthenticationWireframe: BiometricAuthenticationWireframeInpu
                 }
             })
         } else {
-            self.delegate?.viewController(vc, didFailWithError: error!, errorMessage: error?.localizedDescription)
+          guard let error = error else {
+            return
+          }
+          
+          let message: String
+          
+          switch error.code {
+          case -7:
+            message = "\(error.localizedDescription)\n Check your device setting."
+          default:
+            message = error.localizedDescription
+          }
+          
+          view.alert(message: message, title: "Error"){
+            self.delegate?.viewController(vc, didFailWithError: error, errorMessage: error.localizedDescription)
+          }
         }
     }