You are unable to import a task containing secure information exported from another SMP Server.
Due to security reason, exported object containing secure information such as username/password must be encrypted:
ITMS 8.x
Working by design. Security design
In order to import item containing secure information generated on another SMP server, an administrator must export encryption key and import it on the destination SMP server:
On the SMP Server Console, go to Settings>All Settings>Notification Server>Notification Server Settings>Encryption Keys Management tab
1. Export:
2. Import: