Firstly,.. remove the Zipped runtime,. that doesn’t need to be there and can’t be accessed , so, removing it is one less thing to confuse / clutter. (check what’s in it,.. you may have already unzipped it’s content into your runtime and left the Zip file there).
The next step would be to make sure that there’s only One “Runtime” folder, and that it doesn’t contain any other “Runtime” folders
You should have One main Runtime folder. inside your My Library folder, and all of your Poser type content should be inside that runtime folder.
Jump into DS4 and go to Content Management / Scan drives for content.
that should search your drive, and add any folders with content into DS4,. then it should work.
Hope it helps