Backbench has following error codes, this can be used to debug your application on backbench.
Since we have support of nodejs 5.10.1, any code above this can cause this error.
Due to following reasons:-
Callback parameter's missing, because it's a required parameter.
Runtime Failure, due to sterr of the program. Similar to crash in express framework.
Build Failure in App: It occurs while partial build, while saving your app when connection is slow, in this case you just have to hit refresh.
Happens when your program is running more than the given timeout duration. In this case make sure your program terminates within timeout.