Hello,
There are no files at the links you reference:
- https://www.ling.uni-potsdam.de/cslmlab/continuation_study/continuation_pcibex_resources/pic_continuation_study_day1.zip
- https://www.ling.uni-potsdam.de/cslmlab/continuation_study/continuation_pcibex_resources/pic_continuation_study_day2.zip
I tried visiting the same URLs without www. just in case, but with no success. Did you double-check the paths and the file names?
Jeremy