Plugins and Add-ons: Install OpenCast Plugin not successful

Hey Joo,

this is a bug that came in with one of the newer versions.
I think it was this commit:
https://github.com/studer-raimann/OpenCast/commit/a6af4f3bb57f6c6e2ae21f1a8017b2c9a5e48da8

Greetings!