Can`t install cloud connector

  • Platform information:
    • Hardware: Synology DS218+, INTEL Celeron J3355, 2 GHz, 2048 MB
    • Java Runtime Environment: Docker
    • openHAB version: 3.2.0
  • Issue of the topic: After pressing the install button of openHAB 3.2.0 Cloud Connector, the error Installation of add-on 133947 failed appears. What coud be the reason for that? Openhab is running on my Synology with Docker.