The link pointing to the download of the data does not lead to any download page.
http://mitk.org/wiki/Tutorials
The link text shows TCGA-LIHC-DD-A113 and the link is pointing to the address: http://mitk.org/wiki/Tutorials#Data-Sets which leads back to the main tutorial page.
Firefox 52.5.3 (32-bit) version browser was used.