Unable to uninstall munin

While testing munin 2.x on debian, I was unable to uninstall it, Removing munin-node … [FAIL] Munin-Node appears to be unconfigured. … failed! invoke-rc.d: initscript munin-node, action “stop” failed. dpkg: error processing munin-node (–purge): subprocess installed pre-removal script returned error exit status 6 [FAIL] Munin-Node appears to be unconfigured. …