NoSuchMethodError in the Plan mode when migrating board

The following error is displayed when accessing the Plan mode of a recently imported Jira on OnDemand from a local server.

( Error java.lang.NoSuchMethodError: com.atlassian.jira.task.TaskDescriptor.getResult()Ljava/lang/Object; )

Cause:
There is an incompatibility with the Jira Agile imported on OnDemand and the current running version on OnDemand 6.3.11.0
(Observer when importing Jira Agile v6.1.6)

Solution:
The Jira Agile team informed that this fix has already been worked on and will be available on OnDemand in the next version release: v6.3.12

Temporal Workaround:
Upgrade Jira Agile on the local Jira before exporting to OnDemand