安装了WP-DownloadManager1.31 的插件，但无法上传文件，我点击“add file”然后填写相关资料，但系统提示
引用:
Warning: move_uploaded_file(/home/javcin/domains/javcin.vhost.meyu.net/public_html/wp-content/files/test.txt) [function.move-uploaded-file]: failed to open stream: No such file or directory in /home/javcin/domains/javcin.vhost.meyu.net/public_html/wp-content/plugins/wp-downloadmanager/download-add.php on line 57
Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/tmp/phpDOmZOc' to '/home/javcin/domains/javcin.vhost.meyu.net/public_html/wp-content/files/test.txt' in /home/javcin/domains/javcin.vhost.meyu.net/public_html/wp-content/plugins/wp-downloadmanager/download-add.php on line 57
请问如何解决呢？下载地址：
http://wordpress.org/extend/plugins/wp-downloadmanager/
