CayenneLPP Example doesn't build

As mentioned on Github [1], i’cant get get the cayenne LPP example to build. I think this is related to this issue: [2]. Does anyone have an idea how to fix this?

[1] https://github.com/HelTecAutomation/CubeCell-Arduino/issues/216
[2] https://github.com/bblanchon/ArduinoJson/issues/1355

Greetings, val