Bluetooth testing on Raspberry pi

Hi,

I am using raspberry pi 3 for Bluetooth testing, Ipad6 is another Bluetooth device to read Ipad data on raspberry pi. for this I have installed node-red in my raspberry pi module.

I am facing one issue. below is the node-red debug window output.

/__bledev/6c5622029ab6 err:Error: Missing Peripheral Device
=>Error: Missing Peripheral Device
at Peripheral.a (/home/pi/.node-red/node_modules/node-red-contrib-generic-ble/dist/generic-ble.js:217:31)
at Object.onceWrapper (events.js:420:28)
at Peripheral.emit (events.js:326:22)
at PeripheralRemovableNoble.Noble.onDisconnect (/home/pi/.node-red/node_modules/@abandonware/noble/lib/noble.js:245:16)
at BluezBindings.emit (events.js:314:20)
at ProxyInterface. (/home/pi/.node-red/node_modules/node-red-contrib-generic-ble/dist/noble/lib/bluez/noble/lib/bluez/bindings.js:623:18)
at ProxyInterface.emit (events.js:314:20)
at EventEmitter.$listeners. (/home/pi/.node-red/node_modules/dbus-next/lib/client/proxy-interface.js:108:17)
at EventEmitter.emit (events.js:326:22)
at handleMessage (/home/pi/.node-red/node_modules/dbus-next/lib/bus.js:118:23)

Is there anything I am missing.

Br,
Devendra