[whups] Send Reminders,get error

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Hi all:
Whups 1.0 csv up2date,while Whups->Admin->"Send Reminders" get error messages
under after submit:

Notice: Undefined variable: this in /usr/local/lib/php/Horde/Form.php on line
2257

Notice: Undefined variable: this in /usr/local/lib/php/Horde/Form.php on line
2257

Fatal error: Call to undefined function: _disclaimer() in
/usr/local/apache/horde.beta/whups/lib/Whups.php on line 455

David Chang