joomla 2.5 media manager cannot upload image but no error

Question

i want to ask, that when i click start upload button in media manager, i got return a blank page, nothing error.... but when set debugging to development mode, i got some notice

Notice: Undefined index: CONTENT_LENGTH in /home/content/13/11749313/html/administrator/components/com_media/controllers/file.php on line 54

Notice: Undefined index: CONTENT_LENGTH in /home/content/13/11749313/html/administrator/components/com_media/controllers/file.php on line 55

Notice: Undefined index: CONTENT_LENGTH in /home/content/13/11749313/html/administrator/components/com_media/controllers/file.php on line 56

Notice: Undefined index: CONTENT_LENGTH in /home/content/13/11749313/html/administrator/components/com_media/controllers/file.php on line 57

Notice: Undefined index: name in /home/content/13/11749313/html/administrator/components/com_media/controllers/file.php on line 67

Notice: Undefined index: type in /home/content/13/11749313/html/administrator/components/com_media/controllers/file.php on line 67

Notice: Undefined index: tmp_name in /home/content/13/11749313/html/administrator/components/com_media/controllers/file.php on line 67

Notice: Undefined index: error in /home/content/13/11749313/html/administrator/components/com_media/controllers/file.php on line 67

Notice: Undefined index: size in /home/content/13/11749313/html/administrator/components/com_media/controllers/file.php on line 67

Please tell me what is wrong with media manager, its working fine till Friday, but from yesterday i am experiencing this problem... I am using Joomla 2.5

Please help.

Answer 1

Is the form name is same as name at /home/content/13/11749313/html/administrator/components/com_media/controllers/file.php?

I mean

<input type="file" name="file_abc" />

And same name param at file PHP.

$_FILES['file_abc'];