Unable to uninstall Sprectralayers 12 trial version

hello, I cannot uninstall uninstall Sprectralayers 12 trial version after it expired. Dragging it to the trash bin won’t do anything. This trial version prevents me from using the Spectralayers that came with my Cubase pro14. It’s not “active” in the Activation Manager and in the Steinberg Download assistant says not install.

All advices are appreciated.