Apple has updated some software codes in El Capitan (OS X 10.11.x) and Sierra (10.12). This can cause a conflict with your version of Picture Keeper, resulting in a crash while opening the software.
Here’s an example of the error on El Capitan OS.
Here’s an example of the error on macOS Sierra.
Are you seeing a similar error on Windows?
It may be a similar issue. Please contact us directly so that we can determine the cause and help resolve the issue.
If you need any additional assistance, please contact Picture Keeper Support.