What actual training phase are you in at the moment?
You may have set a crit as your target event, but depending on when you set your plan start date, and the time you have before that, you may be in a Base or Build phase now instead of a Specialty phase (where the sprints exist).
See my screen grab of the Crit Specialty, and all the Anaerobic workouts shown. Do note that this plan is specific to my current levels, so your view of the same plan will likely look a bit different.
So, check your actual phase and see where you are. Depending on your goals, you may need to change what you set for your plan start date, or increase your Experience level in the Plan Builder to get the full and proper Specialty phase.