|Jira Agile 6.3
When accessing Agile -> View All Boards, the following error is displayed:
The "Epic Link" custom field was wrongly mapped to custom field that is not Epic Link (in this case, it was mapped to the Account custom field from Tempo Plugin):
You will need to manually associate the correct custom field in the database. Please backup your instance before proceeding.
After that, restart JIRA and the Manage Boards page should open up normally.