I have done the above and added the data set from the tutorialdata.zip but unlike other comments/answers - there is no reference to buttercup online required for the tutorial 1 module 11.
In this link you have two files from Buttercup games
https://docs.splunk.com/Documentation/Splunk/7.3.1/SearchTutorial/Systemrequirements#Download_the_tu...
Download the tutorialdata.zip file. Do not uncompress the file.
Download the Prices.csv.zip file. Do not uncompress the file at this time.
I believe the tutorial is the same as you have, thus it is missing the Prices.csv.zip. I hope this help.
More words.
perhaps this could help...ran into same problem as you. https://answers.splunk.com/answers/235641/is-there-any-way-to-download-the-splunk-buttercup-1.html