[PHP] รบกวนสอบถาม ติดปัญหา อยู่ดีๆเว็บขึ้น An error occurred. nginx

<?php

	move_uploaded_file($_FILES["fileCSV"]["tmp_name"],"csv/".$_FILES["fileCSV"]["name"]);

	$objConnect = mysql_connect("xx","xxx","xxxx") or die("Error Connect to Database");
	$objDB = mysql_select_db("xxx");
	mysql_query("SET NAMES UTF8");
	
	//$group = $_POST["group"];
	//$level = $_POST["level"];
	
	//echo "upload success";
	$objCSV = fopen("csv/".$_FILES["fileCSV"]["name"], "r");
	while (($objArr = fgetcsv($objCSV, 1000, ",")) !== FALSE) 
	{
		$strSQL = "INSERT INTO question";
		$strSQL .=" (id_question,q_name,q_means,q_type,Status,id_member)";
		$strSQL .=" VALUES";
		$strSQL .=" ('','".strtoupper($objArr[1])."','".$objArr[0]."','Dragdrop','Private','".$_SESSION["id_member"]."')";
		$objQuery = mysql_query($strSQL) or die(mysql_error());
	}
	if($objQuery) 
	{
		?><script type="text/javascript">
		alert ('Insert Success'); 
		window.location="addspell.php"; 
		</script><?php
	}
	else
	{
		?><script type="text/javascript">
		alert ('Insert Failed. Please try again'); 
		window.location="addspell.php";
		</script><?php
	}

	fclose($objCSV);  
	mysql_close($objConnect);

?>