diff --git a/.devcontainer/science-ation-blank-generic.sql b/.devcontainer/science-ation-blank-generic.sql
index 9c74ea58..dd1285e2 100644
--- a/.devcontainer/science-ation-blank-generic.sql
+++ b/.devcontainer/science-ation-blank-generic.sql
@@ -903,7 +903,7 @@ LOCK TABLES `emailqueue_recipients` WRITE;
 UNLOCK TABLES;
 
 --
--- Table structure for table `emails`
+-- Table structure for table `git 
 --
 
 DROP TABLE IF EXISTS `emails`;
@@ -3223,7 +3223,7 @@ CREATE TABLE `students` (
   `lang` char(2) NOT NULL DEFAULT '',
   `year` int(11) NOT NULL DEFAULT 0,
   `schools_id` int(10) unsigned NOT NULL DEFAULT 0,
-  `fairs_id` int(11) NOT NULL,
+  `fairs_id` int(11) NOT NULL DEFAULT 0,
   `tshirt` varchar(32) NOT NULL DEFAULT 'medium',
   `medicalalert` varchar(255) NOT NULL DEFAULT '',
   `foodreq` varchar(255) NOT NULL DEFAULT '',
diff --git a/admin/schools.php b/admin/schools.php
index 008984f9..2bf2338f 100644
--- a/admin/schools.php
+++ b/admin/schools.php
@@ -153,7 +153,7 @@ if (get_value_from_array($_POST, 'save') == 'edit' || get_value_from_array($_POS
 		$sh['username'] = $em;
 		user_save($sh);
 	}
-
+	
 	$exec = 'UPDATE schools SET '
 		. "school='" . get_value_from_array($_POST, 'school') . "', "
 		. "schoollang='" . get_value_from_array($_POST, 'schoollang') . "', "
@@ -170,8 +170,8 @@ if (get_value_from_array($_POST, 'save') == 'edit' || get_value_from_array($_POS
 		. "phone='" . get_value_from_array($_POST, 'phone') . "', "
 		. "fax='" . get_value_from_array($_POST, 'fax') . "', "
 		. "registration_password='" . get_value_from_array($_POST, 'registration_password') . "', "
-		. "projectlimit='" . get_value_from_array($_POST, 'projectlimit') . "', "
-		. "projectlimitper='" . get_value_from_array($_POST, 'projectlimitper') . "', "
+		. "projectlimit='" . get_value_from_array($_POST, 'projectlimit', 0) . "', "
+		. "projectlimitper='" . get_value_from_array($_POST, 'projectlimitper', 'total') . "', "
 		. "accesscode='" . get_value_from_array($_POST, 'accesscode') . "', "
 		. $sciencehead_update . $principal_update
 		. "atrisk='$atrisk' "
diff --git a/common.inc.php b/common.inc.php
index 8718c4f4..8d113bde 100644
--- a/common.inc.php
+++ b/common.inc.php
@@ -712,10 +712,21 @@ function emit_month_selector($name, $selected = '')
 			$s = '';
 		echo "<option $s value=\"$x\">" . $months[$x] . "</option>\n";
 	}
-
+					// returns true if its a valid email address, false if its not
+					
 	echo "</select>\n";
 }
 
+function isEmailAddress($str)
+	{	
+		if (preg_match("/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,})$/i", $str))
+			return true;
+		else
+			return false;
+					
+	}
+
+
 function emit_day_selector($name, $selected = '')
 {
 	echo "<select name=\"$name\">\n";
@@ -864,14 +875,6 @@ function outputStatus($status)
 	return $ret;
 }
 
-// returns true if its a valid email address, false if its not
-function isEmailAddress($str)
-{
-	if (preg_match('/^[+a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.([a-zA-Z]{2,4})$/i', $str))
-		return true;
-	else
-		return false;
-}
 
 function communication_get_user_replacements(&$u)
 {
diff --git a/register_participants.php b/register_participants.php
index 9f366ce1..d0010168 100644
--- a/register_participants.php
+++ b/register_participants.php
@@ -39,6 +39,7 @@ if (get_value_from_array($_POST, 'action') == 'new') {
 		$r = $q->fetch(PDO::FETCH_OBJ);
 		$_SESSION['registration_number'] = $r->num;
 		$_SESSION['registration_id'] = $r->id;
+		$r->schools_id = $r->schools_id ?? 0;
 		$stmt = $pdo->prepare("INSERT INTO students (registrations_id,email,schools_id,year) VALUES ('$r->id','" . $_SESSION['email'] . "','" . $r->schools_id . "','" . $config['FAIRYEAR'] . "')");
 		$stmt->execute();
 
@@ -125,7 +126,7 @@ send_header('Participant Registration');
 
 if (get_value_from_array($_POST, 'action') == 'login' && (get_value_from_array($_POST, 'email') || get_value_from_array($_SESSION, 'email'))) {
 	if (get_value_from_array($_POST, 'email'))
-		$_SESSION['email'] = stripslashes($pdo->quote($_POST['email']));
+		$_SESSION['email'] = stripslashes($_POST['email']);
 
 	echo '<form method="post" action="register_participants.php">';