Downtime schedule removal about icingaweb2-module-deployment HOT 1 OPEN

I get one Error (500 Error)when I try to delete one Downtime:

Icinga\Module\Monitoring\Backend\Ido\Query\DowntimeQuery : Got invalid column: downtime_objecttype

#0 /usr/share/icingaweb2/modules/monitoring/library/Monitoring/Backend/Ido/Query/IdoQuery.php(668): Icinga\Module\Monitoring\Backend\Ido\Query\IdoQuery->requireColumn('downtime_object...')
#1 /usr/share/icingaweb2/modules/monitoring/library/Monitoring/Backend/Ido/Query/IdoQuery.php(917): Icinga\Module\Monitoring\Backend\Ido\Query\IdoQuery->resolveColumns(Array)
#2 /usr/share/php/Icinga/Data/SimpleQuery.php(102): Icinga\Module\Monitoring\Backend\Ido\Query\IdoQuery->columns(Array)
#3 /usr/share/icingaweb2/modules/monitoring/library/Monitoring/Backend/MonitoringBackend.php(305): Icinga\Data\SimpleQuery->__construct(Object(Icinga\Data\Db\DbConnection), Array)
#4 /usr/share/icingaweb2/modules/monitoring/library/Monitoring/DataView/DataView.php(45): Icinga\Module\Monitoring\Backend\MonitoringBackend->query('Downtime', Array)
#5 /usr/share/icingaweb2/modules/monitoring/library/Monitoring/Backend/MonitoringBackend.php(260): Icinga\Module\Monitoring\DataView\DataView->__construct(Object(Icinga\Module\Monitoring\Backend\Ido\IdoBackend), Array)
#6 /usr/share/icingaweb2/modules/deployment/application/controllers/DowntimeController.php(35): Icinga\Module\Monitoring\Backend\MonitoringBackend->from('downtime', Array)
#7 /usr/share/php/Zend/Controller/Action.php(516): Deployment_DowntimeController->removeAction()
#8 /usr/share/php/Zend/Controller/Dispatcher/Standard.php(295): Zend_Controller_Action->dispatch('removeAction')
#9 /usr/share/php/Zend/Controller/Front.php(954): Zend_Controller_Dispatcher_Standard->dispatch(Object(Icinga\Web\Request), Object(Icinga\Web\Response))
#10 /usr/share/php/Icinga/Application/Web.php(154): Zend_Controller_Front->dispatch(Object(Icinga\Web\Request), Object(Icinga\Web\Response))
#11 /usr/share/php/Icinga/Application/webrouter.php(111): Icinga\Application\Web->dispatch()
#12 /usr/share/icingaweb2/public/index.php(4): require_once('/usr/share/php/...')
#13 {main}

Affected versions:
Icingaweb2: 2.0.0rc1-1debmon70+1
icinga2: 2.3.8-1~debmon70+1
Debian 7.8

from icingaweb2-module-deployment.