If items are stuck in the queue (Email/SMS/Smugmug) you can attempt to force their sending via the steps below:

Example:

Go to Settings > Other Settings in app:

On this page check for text label “Version: Landmark Photo Booth Version/Build #" and long press on it:

Press: 'Select Media Files':

Select the media which are not shared or suspended (or select all photos, if unsure) and then select 'done'.

This will start uploading the media to AWS server bucket and once successful the prompt will go away.

Now browse to the sharing information (in your specific event) which is there in ViewSuspended view.

On this view you will see the Label “View Suspended” at top of the view, Long press on it, it will show the popup “Are you sure you want to backup Share data to Server?”

Press Yes and it will process the data files and upload them AWS server at same bucket where media files are uploaded.