In order to determine the source of the problem and help you, we need to have the crash traces of the application. To find them:
- Launch the Console application for your Mac
- In the filter field, type Flickr Wallpaper to list all messages pertinent Flickr Wallpaper
- In the message list , click the Edit menu> Select All
- Then click on Edit> Copy to copy the messages
You can then paste these messages in an email that you can send back to the address firstname.lastname@example.org.
From these traces and your description, we will be able to diagnose the problem and help you solve the issue.
Thank you for your patience and your understanding.