Unclear error message when trying to use the Taskboard with too many issues

Try to view the Taskboard for the CONF project on JAC. It gives an error message:

Your version contains too many issues to compute the Task Board.
Please narrow the issues to display using the Task Board context.

To me, this seems to say:

• You can't use X
• Use X to fix the problem

I guess it is meant to be interpreted as:

• You can't use X
• Fix it so that you can use X

But it is unclear, and should be better written so that the user knows what to do.