Unhandled Error
TypeError: Cannot convert undefined or null to object
    at Function.keys (<anonymous>)
    at ipcRpc.send (C:/Users/sauer/AppData/Local/Programs/homematic-manager/resources/app.asar/www/js/homematic-manager.js:452:20)
    at EventEmitter.Rpc.ipc.on (C:/Users/sauer/AppData/Local/Programs/homematic-manager/resources/app.asar/node_modules/electron-ipc-rpc/index.js:26:17)

Homematic Manager Version 2.7.0
Windows 10 2004