[Karellen]

update 

Thanks.
This scraper update was released a few days ago, and I tested it quite thoroughly. I cannot replicate those errors.

Can you go to C:\Users\Flest\AppData\Roaming\Kodi\userdata\addon_data\metadata.themoviedb.org.python and delete all the files in that folder.
This will delete the default settings for the scraper. If you made changes to it, you will need to set them again. It will be recreated when you start Kodi.
Now start Kodi and delete your source like you did in the video.
Add back the source, set the scraper and adjust the settings.
Try scraping again. Any errors?