I have this error as well – still looking for answers!
Thread Starter
ro_bro
(@ro_bro)
actually, strange, but error happened again.
but this time, I just deleted, then reinstalled the backup plugin, and now it’s really fine. resolved.
if you have WP version 2.1 or above, use this updated one. it’s nice!
http://www.im-web-gefunden.de/wordpress-plugins/role-manager/