每当我尝试上传文件时，都会出现一个空白屏幕，并显示以下 PHP 错误：
Notice: Undefined index: CONTENT_LENGTH in /administrator/components/com_media/controllers/file.php on line 61
Notice: Undefined index: CONTENT_LENGTH in /administrator/components/com_media/controllers/file.php on line 62
Notice: Undefined index: CONTENT_LENGTH in /administrator/components/com_media/controllers/file.php on line 63
Notice: Undefined index: CONTENT_LENGTH in /administrator/components/com_media/controllers/file.php on line 64
Warning: Invalid argument supplied for foreach() in /administrator/components/com_media/controllers/file.php on line 72
Warning: Invalid argument supplied for foreach() in /administrator/components/com_media/controllers/file.php on line 109