Unable to open OmniFocus
 

I get the following message when I attempt to open OmniFocus.

"This application is not licensed or too many users are using the application."

Why? I downloaded the version in question (90587) on August 31 and I am the only person using the application.

Ignore my message ... I checked and found that the license key had expired in August ... I downloaded the most recent version and it now works correctly.