I am having no success importing into LingQ the short audios (and transcripts) of the recent episodes of Deutsche Welle’s series “Top-Thema.” I have tried both the Firefox and Chrome extension and I always get the same error:
"Importing failed - int() argument must be a string or a number, not ‘NoneType’
There are older episodes available on LingQ, so I’m guessing it must be possible to bring them in. Any suggestions?
Hello, Clenias.
You can manually import the lesson into LingQ, by pressing the plus sign in the upper-right corner of your screen. To do so, you have to copy and paste the transcript of the lesson, download the audio from the Top-Thema page and upload it into your lesson (or use the URL from the download link). When I come across some error, that’s what I do. Always works fine.
Good luck! 
Henrique’s got your answer for most of what’s under DW Top-Thema. In addition, for video Top-Thema, you can look on youtube. If you search for DW Top-Thema you’ll get some hits. Or just go here:
Deutsch lernen mit der DW - YouTube
Look for the one’s that have the “video-thema” indication in the thumbnail picture. Those all have proper subtitles (not auto-generated). You can start playing those and use the lingq extension to import the video and subtitles.