You've made changes to your menu or settings on your Bustle Hub...
And you need them to appear on the Bustle Till app...
Here's how to sync your changes:
In the Bustle till app, simply press the Settings button at the top right then press the Sync Menu button. This will save any changes to your menu or settings on your Bustle Hub to the iPad app. This needs to be done on all iPads, if you have more than one.