Lot of problems

Hi,

i'm new at LibreELEC. I have a lot of problems.

I have setup a SD-Card with LibreELEC for my Raspi Pi 3+. The Setup was quit easy, but i have problems with the Addons. With help from a HowTo i have added the kodinerds repo, but i have no connection to the repo to install addons.

From anothe repo i have installed the ddon for Amazon prime. The setup would install widevine. The installion starts, and abort with the message "cant istall one file" .

Sky ticket needs widevine too, but i cant install that

Is there another way to install widevine and Netflix without the kodinerds-repo?

thx