Error: Symbol Not Found Error Could not find symbol '<Toybox_SensorLogging_SensorLogger_>>mAccelStats>'

I was building prg for Instinct2 in my sim but to find this error. What's this

Error: Symbol Not Found Error
Details: Could not find symbol '<Toybox_SensorLogging_SensorLogger_>>mAccelStats>'
Stack: 
  - initialize() at /Users/Shared/Garmin/prj/di/toolchain/mbsimulator/submodules/technology/monkeybrains/virtual-machine/api/SensorLogging.mb:99 0x30000e72 
  - initialize() at /Users/kent/AwesomeJumpingRope/source/AwesomeJumpingRopeModel.mc:133 0x1000240d 
  - initialize() at /Users/kent/AwesomeJumpingRope/source/AwesomeJumpingRopeApp.mc:15 0x100089a3 

My code works fine on other non e-ink devices.

The image uploading service seems down. 

https://pasteboard.co/yNqZDXJRZZYi.png