PHP & SQL match but script still doesn't work - php

Question

I am having some issues for the last 5 hours. I've been trying to fix it and I can't seem to find a solution, so I hope you can help me!
So I have this vote.php script:
<?php
if(basename($_SERVER["PHP_SELF"]) == "vote.php") {
die("403 - Access Forbidden");
}
echo "<h2 class=\"text-left\">Vote</h2><hr/>";
$earnedpoints = false;
$insertnew = false;
$time = time();
$redirect = "";
$account = $mysqli->real_escape_string(preg_replace("/[^A-Za-z0-9 ]/", '', #$_POST['name']));
$siteid = $mysqli->real_escape_string(#$_POST['votingsite']);
$checkacc = $mysqli->query("SELECT * FROM accounts WHERE name = '$account'");
$countcheckacc = $checkacc->num_rows;
$row = $checkacc->fetch_assoc();
if($countcheckacc == 0 && isset($_POST['submit'])) {
$funct_error = "This account doesn't exist!";
}
if($row['loggedin'] > 0 && isset($_POST['submit'])) {
$funct_error = "This account is logged in!";
} elseif ($account == '' && isset($_POST['submit'])) {
$funct_error = 'You need to put in a username!';
} elseif(empty($_POST['votingsite']) && isset($_POST['submit'])){
$funct_error = "Please select a voting site";
} elseif(isset($_POST['submit'])) {
$checksite = $mysqli->query("SELECT * FROM ".$prefix."vote WHERE id = ".$siteid."");
$countchecksite = $checksite->num_rows;
if($countchecksite == 0 && isset($_POST['submit'])) {
$funct_error = "Invalid voting site.";
} else {
$result = $mysqli->query("SELECT *, SUM(times) as amount FROM ".$prefix."votingrecords WHERE NOT account='' AND NOT account='0' AND account='".$account."' AND siteid = '".$siteid."'") or die('Error - Could not look up vote record!');
$row = $result->fetch_assoc();
$sitequery = $mysqli->query("SELECT * FROM ".$prefix."vote WHERE id = '".$siteid."'");
$vsite = $sitequery->fetch_assoc();
$gvp = $vsite['gvp'];
$gnx = $vsite['gnx'];
$timecalc = $time - $row['date'];
if ($row['amount'] == '' || $timecalc > $vsite['waittime']) {
if($row['amount'] == '') {
$result = $mysqli->query("INSERT INTO ".$prefix."votingrecords (siteid, ip, account, date, times) VALUES ('".$siteid."', '".$ipaddress."', '".$account."', '".$time."', '1')") or die ('Error - Could not insert vote records!');
} else {
$result = $mysqli->query("UPDATE ".$prefix."votingrecords SET siteid = '".$siteid."', ip='".$ipaddress."', account='".$account."', date='".$time."', times='1' WHERE account='".$account."' AND siteid = '".$siteid."'") or die ('Error - Could not update vote records!');
}
$earnedpoints = true;
if ($earnedpoints == true) {
if ($account != '') {
$result = $mysqli->query("UPDATE accounts
SET $colvp = $colvp + $gvp,
$colnx = $colnx + $gnx
WHERE name='".$account."'") or die ('Error - Could not give rewards. Your site administrator needs to configure the NX and VP settings.');
}
$funct_msg = '<meta http-equiv="refresh" content="0; url='.$vsite['link'].'">';
$redirect = true;
}
} elseif($timecalc < $vsite['waittime'] && $row['amount'] != '') {
$funct_msg = 'You\'ve already voted for '.$vsite['name'].' within the last '.round($vsite['waittime']/3600).' hours!';
$funct_msg .= '<br />Vote time: '. date('M d\, h:i A', $row['date']);
} else {
$funct_error = 'Unknown Error';
}
}
}
if($redirect == true) {
echo $funct_msg;
} else {
if(isset($funct_msg)) {
echo '<div class="alert alert-danger">'.$funct_msg.'</div>';
}
if(isset($funct_error)) {
echo '<div class="alert alert-danger">'.$funct_error.'</div>';
}
$query = $mysqli->query("SELECT * from ".$prefix."vote");
if($query->num_rows == 0){
echo "<div class=\"alert alert-danger\">Your administrator has not added any voting sites yet!</div>";
} else {
echo "
<form method=\"post\">
<div class=\"form-group\">
<label for=\"voteSite\">Select Site:</label>
<select name=\"votingsite\" class=\"form-control\" id=\"voteSite\" required>
<option value=\"\" disabled selected>Select Site...</option>";
while($row = $query->fetch_assoc()){
echo "<option value=\"".$row['id']."\">".$row['name']."</option>";
}
echo "</select>
</div>";
if(!isset($_SESSION['id'])) {
echo "<input type=\"text\" name=\"name\" maxlength=\"15\" class=\"form-control\" placeholder=\"Username\" required autocomplete=\"off\"/><br/>";
} else {
echo "<input type=\"text\" name=\"name\" maxlength=\"15\" class=\"form-control\" placeholder=\"".$_SESSION['name']."\" value=\"".$_SESSION['name']."\" required autocomplete=\"off\"/><br/>";
}
echo "
<input type=\"submit\" name=\"submit\" value=\"Submit »\" class=\"btn btn-primary\"/>
</form>";
}
}
I have this in votingrecords table in SQL: ip, account, date, times, amount. It's correct.
The problem I'm having is that whenever I type my username to vote for the game, I'm getting this error message "Error - Could not look up vote record!".
Here's the code for this error:
else {
$result = $mysqli->query("SELECT *, SUM(times) as amount
FROM ".$prefix."votingrecords
WHERE NOT account=''
AND NOT account='0'
AND account='".$account."'
AND siteid = '".$siteid."'") or die('Error - Could not look up vote record!');
$row = $result->fetch_assoc();
$sitequery = $mysqli->query("SELECT * FROM ".$prefix."vote WHERE id = '".$siteid."'");
$vsite = $sitequery->fetch_assoc();
$gvp = $vsite['gvp'];
$gnx = $vsite['gnx'];
$timecalc = $time - $row['date'];
I hope you guys can help me, since I've tried everything and cannot get it to work

Answer 1

thanks for helping.
I got this issue fixed by executing this SET GLOBAL sql_mode = 'STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION'; in MYSQL.
This would not happen if #RiggsFolly didn't tell me to use this code to display real useful errors, so thank you.
Thanks all!