อัพโหลดไฟล์งาน ทำใน appserv ได้ แต่พออัพเว็บขึ้นโฮสจริง อัพโหลดไฟล์ไม่ได้

<?
$con = mysql_connect("localhost","root","root");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }
  else {
	  
mysql_query("set names'utf8';");
  }
mysql_select_db("kkwind", $con);

$result = mysql_query("SELECT MAX(file_1) as MaxF1 ,MAX(file_2) as MaxF2 ,MAX(file_3) as MaxF3 ,MAX(file_4) as MaxF4  FROM tb_register");
while($row = mysql_fetch_array($result))
  {
		
	$MaxF1value = substr($row['MaxF1'], -5, 1);  
	$str1 = $MaxF1value;
	$num1 = (int)$str1;
	$id_1 = $num1+1;

	$MaxF2value = substr($row['MaxF2'], -5, 1);    
	$str2 = $MaxF2value;
	$num2 = (int)$str2;
	$id_2 = $num2+1;

	$MaxF3value = substr($row['MaxF3'], -5, 1);    
	$str3 = $MaxF3value;
	$num3 = (int)$str3;
	$id_3 = $num3+1;

	$MaxF4value = substr($row['MaxF4'], -5, 1);    
	$str4 = $MaxF4value;
	$num4 = (int)$str4;
	$id_4 = $num4+1;
  }
		 
$uploads_dir1 = 'File_1/';
$uploads_dir2 = 'File_2/';
$uploads_dir3 = 'File_3/';
$uploads_dir4 = 'File_4/';
if (!empty($pic)){
	 if (is_uploaded_file ($pic)){
		$tmp_name = $_FILES["pic"]["tmp_name"];
        //$name = $_FILES["pic"]["name"];
		$name = "files_1-$id_1.jpg";
        move_uploaded_file($tmp_name, "$uploads_dir1/$name");
	 }
}
if (!empty($degreeCir)){
	 if (is_uploaded_file ($degreeCir)){
		$tmp_name2 = $_FILES["degreeCir"]["tmp_name"];
		$name2 = "files_2-$id_2.pdf";
        move_uploaded_file($tmp_name2, "$uploads_dir2/$name2");
	 }
}
if (!empty($idcard)){
	 if (is_uploaded_file ($idcard)){
		$tmp_name3 = $_FILES["idcard"]["tmp_name"];
		$name3 = "files_3-$id_3.pdf";
        move_uploaded_file($tmp_name3, "$uploads_dir3/$name3");
	 }
}
if (!empty($home)){
	 if (is_uploaded_file ($home)){
		$tmp_name4 = $_FILES["home"]["tmp_name"];
		$name4 = "files_4-$id_4.pdf";
        move_uploaded_file($tmp_name4, "$uploads_dir4/$name4");

	 }
}

mysql_select_db("kkwindre_db", $con);
$pic=$_POST['name'];
$degree=$_POST['name2'];
$idcard=$_POST['name3'];
$home=$_POST['name4'];
$sql = "INSERT INTO tb_register (file_1, file_2, file_3, file_4)VALUES('$name','$name2','$name3','$name4')";
mysql_query($sql) or die(mysql_error());
mysql_close($con);
?>