The Immunization analysis app has today been updated in app store. The only thing changed is that you can now select the year 2019 in the period dropdown. Previously it only showed the years from 2013 up to 2018.
To get the new app, uninstall the old in apps management app, then install the new one from the app store section.
For 2.27-2.28 instances the new version is named 1.0.1a, and for 2.29 and upwards the new version number is 1.0.3.