A K2 Connect Server error appears when trying to delete the K2 Connect destination that is no longer needed. As a result, the K2 Connect destination fails to get deleted.
To resolve this, please delete the Application Instance from the K2 Connect Administration Tool:
1. In the main window, under the "Registered Components" section, expand the "Application Server" node. (Application Server > [Server Name])
2. Right-click on the Application Instance listed. There should be a "Remove Application Instance" option shown.
3. Select the option to remove the Application Instance.
4. After it is done, you may proceed to delete the Destination and System.