Try going into phpmyadmin open adopts_themes
Add the theme manually.
Example of how they should look:
http://gyazo.com/2b33d9f8c74f3ef544655fb02a0f1a74
Now to add it manually, find the current one for the theme you're trying to add, click edit.
Under themename you can put, say Spooky Wood
Under themefolder put ONLY : spookywood
That's basing off what it should be if you uploading the theme correctly (if you really have a folder called spookywood.html (as a directory/folder not an actual html file) then you uploaded it wrong to begin with.
Edit: Man you guys beat me lol.
Yes it has to be template.html