The Download feature on the Market my Business section of the app for Android users should now be fixed! Sorry for the inconvenience but you should be good to download now.
If you are still having issues please follow these steps to clear your cache (and possibly your app data if the clearing cache didn’t fix it):
Step 1: Open the Settings application on your device.
Step 2: Head Over to Apps Menu
Step 3: Choose Installed Applications
Step 4: Find the Application you want to Clear the App Data of
Step 5: Select Storage
Step 6: Hit Clear Cache – if problem still exists, do step 7
Step 7: Hit Clear App Data – this will cause the data stored on the app to be removed such as their stored username/password to access the app. For all intensive purposes, this step is like installing the app for the first time.