Error bei internem Banner mit Umlaut/Leerzeichen im Dateinamen

[BugBuster1701]

Banner anlegen und speichern. Statt der Übersicht kommt dann:
Internal Server Error
/files/bilder/09_R%C3%BCdiger-Kaminski_Feldhase.jpg does not exist
at /vendor/contao/image/src/Image.php:59

Dateiname ist "09_Rüdiger-Kaminski_Feldhase.jpg"
Contao 4.4.21

[BugBuster1701]

/files/bilder/micha%20059.jpg does not exist

[BugBuster1701]

In Contao 3.5 mit Banner Modul 3.6.1 funktioniert es. (mit Leerzeichen im Dateinamen geprüft)

[BugBuster1701]

https://github.com/BugBuster1701/contao-banner-bundle/blob/master/src/Resources/contao/classes/DcaBanner.php#L177

InvalidArgumentException:
/daten/contao4go/contao439me.contaodev/files/bilder/micha%20059.jpg does not exist

  at vendor/contao/image/src/Image.php:59
  at Contao\Image\Image->__construct('/daten/contao4go/contao439me.contaodev/files/bilder/micha%20059.jpg', object(Imagine), object(Filesystem))
     (vendor/contao/core-bundle/src/Image/ImageFactory.php:121)
  at Contao\CoreBundle\Image\ImageFactory->create('/daten/contao4go/contao439me.contaodev/files/bilder/micha%20059.jpg', array(200.0, 200, 'proportional'))
     (vendor/bugbuster/contao-banner-bundle/src/Resources/contao/classes/DcaBanner.php:179)
  at BugBuster\Banner\DcaBanner->listBannerInternal(array('id' => '9', 'pid' => '2', 'sorting' => '256', 'tstamp' => '1536276939', 'banner_type' => 'banner_image', 'banner_name' => 'Leerzeichen im Dateinamen', 'banner_weighting' => '2', 'banner_url' => 'https://www.freepngs.com/', 'banner_jumpTo' => '0', 'banner_target' => '', 'banner_image' => 'I��ò-�荀�+48��', 'banner_image_extern' => '', 'banner_imgSize' => 'a:3:{i:0;s:3:"150";i:1;s:0:"";i:2;s:12:"proportional";}', 'banner_published' => '1', 'banner_start' => '', 'banner_stop' => '', 'banner_until' => '', 'banner_views_until' => '', 'banner_clicks_until' => '', 'banner_domain' => '', 'banner_cssid' => 'a:2:{i:0;s:0:"";i:1;s:0:"";}', 'banner_comment' => null))
     (vendor/bugbuster/contao-banner-bundle/src/Resources/contao/classes/DcaBanner.php:117)
  at BugBuster\Banner\DcaBanner->listBanner(array('id' => '9', 'pid' => '2', 'sorting' => '256', 'tstamp' => '1536276939', 'banner_type' => 'banner_image', 'banner_name' => 'Leerzeichen im Dateinamen', 'banner_weighting' => '2', 'banner_url' => 'https://www.freepngs.com/', 'banner_jumpTo' => '0', 'banner_target' => '', 'banner_image' => 'I��ò-�荀�+48��', 'banner_image_extern' => '', 'banner_imgSize' => 'a:3:{i:0;s:3:"150";i:1;s:0:"";i:2;s:12:"proportional";}', 'banner_published' => '1', 'banner_start' => '', 'banner_stop' => '', 'banner_until' => '', 'banner_views_until' => '', 'banner_clicks_until' => '', 'banner_domain' => '', 'banner_cssid' => 'a:2:{i:0;s:0:"";i:1;s:0:"";}', 'banner_comment' => null))
     (vendor/contao/core-bundle/src/Resources/contao/drivers/DC_Table.php:4462)
  at Contao\DC_Table->parentView()
     (vendor/contao/core-bundle/src/Resources/contao/drivers/DC_Table.php:351)
  at Contao\DC_Table->showAll()
     (vendor/contao/core-bundle/src/Resources/contao/classes/Backend.php:620)
  at Contao\Backend->getBackendModule('banner', null)
     (vendor/contao/core-bundle/src/Resources/contao/controllers/BackendMain.php:132)
  at Contao\BackendMain->run()
     (vendor/contao/core-bundle/src/Controller/BackendController.php:55)
  at Contao\CoreBundle\Controller\BackendController->mainAction()
     (vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php:151)
  at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), 1)
     (vendor/symfony/symfony/src/Symfony/Component/HttpKernel/HttpKernel.php:68)
  at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), 1, true)
     (vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php:200)
  at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
     (web/app_dev.php:64)