Fehlermeldung Rundmail an alle Benutzer

Moin,

bei 85% erreicht mich folgende Fehlermeldung, die ich nicht deuten kann. Leider. Kann jmd. helfen?

Danke und Gruß

Fehlermeldung

The length of any one label is limited to between 1 and 63 octets, but 0 given.

File:

/var/www/web28694332/html/forum/lib/system/email/Mailbox.class.php in line 66

Stacktrace:

#0 /var/www/web28694332/html/forum/lib/system/email/UserMailbox.class.php(27): wcf\system\email\Mailbox->__construct('*snip*...', 'xXHias96Xx', Object(wcf\data\language\Language))

#1 /var/www/web28694332/html/forum/lib/system/worker/MailWorker.class.php(155): wcf\system\email\UserMailbox->__construct(Object(wcf\data\user\User))

#2 /var/www/web28694332/html/forum/lib/system/worker/MailWorker.class.php(142): wcf\system\worker\MailWorker->sendMail(Object(wcf\system\email\Email), Object(wcf\data\user\User))

#3 /var/www/web28694332/html/forum/lib/acp/action/WorkerProxyAction.class.php(92): wcf\system\worker\MailWorker->execute()

#4 /var/www/web28694332/html/forum/lib/action/AbstractAction.class.php(47): wcf\acp\action\WorkerProxyAction->execute()

#5 /var/www/web28694332/html/forum/lib/action/AJAXInvokeAction.class.php(61): wcf\action\AbstractAction->__run()

#6 /var/www/web28694332/html/forum/lib/system/request/Request.class.php(83): wcf\action\AJAXInvokeAction->__run()

#7 /var/www/web28694332/html/forum/lib/system/request/RequestHandler.class.php(107): wcf\system\request\Request->execute()

#8 /var/www/web28694332/html/forum/acp/index.php(9): wcf\system\request\RequestHandler->handle('wcf', true)

#9 {main}

The length of any one label is limited to between 1 and 63 octets, but 0 given.

Stacktrace

#0 /var/www/web28694332/html/forum/lib/system/email/Mailbox.class.php(63): TrueBV\Punycode->encode('yahoo..de')

#1 /var/www/web28694332/html/forum/lib/system/email/UserMailbox.class.php(27): wcf\system\email\Mailbox->__construct('*snip*...', 'xXHias96Xx', Object(wcf\data\language\Language))

#2 /var/www/web28694332/html/forum/lib/system/worker/MailWorker.class.php(155): wcf\system\email\UserMailbox->__construct(Object(wcf\data\user\User))

#3 /var/www/web28694332/html/forum/lib/system/worker/MailWorker.class.php(142): wcf\system\worker\MailWorker->sendMail(Object(wcf\system\email\Email), Object(wcf\data\user\User))

#4 /var/www/web28694332/html/forum/lib/acp/action/WorkerProxyAction.class.php(92): wcf\system\worker\MailWorker->execute()

#5 /var/www/web28694332/html/forum/lib/action/AbstractAction.class.php(47): wcf\acp\action\WorkerProxyAction->execute()

#6 /var/www/web28694332/html/forum/lib/action/AJAXInvokeAction.class.php(61): wcf\action\AbstractAction->__run()

#7 /var/www/web28694332/html/forum/lib/system/request/Request.class.php(83): wcf\action\AJAXInvokeAction->__run()

#8 /var/www/web28694332/html/forum/lib/system/request/RequestHandler.class.php(107): wcf\system\request\Request->execute()

#9 /var/www/web28694332/html/forum/acp/index.php(9): wcf\system\request\RequestHandler->handle('wcf', true)

#10 {main}