-improved packupload errorhandling

git-svn-id: svn://svn.jdownloader.org/jdownloader/trunk@26183 ebf7c1c2-ba36-0410-9fe8-c592906822b4
Fixed: real-debrid.com, error in dynamic chunk handling - refs #46671

git-svn-id: svn://svn.jdownloader.org/jdownloader/trunk@26184 ebf7c1c2-ba36-0410-9fe8-c592906822b4