diff --git a/mod/filerm.php b/mod/filerm.php
index b1f9f8d74b..9013dd62b4 100644
--- a/mod/filerm.php
+++ b/mod/filerm.php
@@ -12,7 +12,7 @@ function filerm_content(App $a)
 		exit();
 	}
 
-	$term = XML::unescape(trim($_GET['term']));
+	$term = XML::unescape(trim(defaults($_GET, 'term', '')));
 	$cat = XML::unescape(trim(defaults($_GET, 'cat', '')));
 
 	$category = (($cat) ? true : false);
diff --git a/mod/follow.php b/mod/follow.php
index abde4abd03..404c79ea10 100644
--- a/mod/follow.php
+++ b/mod/follow.php
@@ -60,7 +60,11 @@ function follow_content(App $a)
 	}
 
 	$uid = local_user();
-	$url = Strings::escapeTags(trim($_REQUEST['url']));
+	$url = Strings::escapeTags(trim(defaults($_REQUEST, 'url', '')));
+
+	if (!$url) {
+		$a->internalRedirect($return_path);
+	}
 
 	$submit = L10n::t('Submit Request');
 
diff --git a/src/Model/Register.php b/src/Model/Register.php
index c2dd96def5..8a03f379a6 100644
--- a/src/Model/Register.php
+++ b/src/Model/Register.php
@@ -25,7 +25,7 @@ class Register
 	public static function getPending()
 	{
 		$stmt = DBA::p(
-			"SELECT `register`.*, `contact`.`name`, `user`.`email`
+			"SELECT `register`.*, `contact`.`name`, `contact`.`url`, `contact`.`micro`, `user`.`email`
 			FROM `register`
 			INNER JOIN `contact` ON `register`.`uid` = `contact`.`uid`
 			INNER JOIN `user` ON `register`.`uid` = `user`.`uid`"
diff --git a/src/Object/Image.php b/src/Object/Image.php
index 45c8bedeaf..66be78ad46 100644
--- a/src/Object/Image.php
+++ b/src/Object/Image.php
@@ -447,7 +447,7 @@ class Image
 			return;
 		}
 
-		$ort = $exif['IFD0']['Orientation'];
+		$ort = isset($exif['IFD0']['Orientation']) ? $exif['IFD0']['Orientation'] : 1;
 
 		switch ($ort) {
 			case 1: // nothing
diff --git a/view/theme/frio/php/default.php b/view/theme/frio/php/default.php
index b9600cc22e..29d7ab53c1 100644
--- a/view/theme/frio/php/default.php
+++ b/view/theme/frio/php/default.php
@@ -44,7 +44,7 @@ $is_singleuser_class = $is_singleuser ? "is-singleuser" : "is-not-singleuser";
 		// It makes mobile Chrome UI match Frio's top bar color.
 		$uid = Profile::getThemeUid($a);
 		$scheme = PConfig::get($uid, 'frio', 'scheme', PConfig::get($uid, 'frio', 'schema'));
-		if ($scheme && ($scheme != '---')) {
+		if ($scheme && is_string($scheme) && $scheme != '---') {
 			if (file_exists('view/theme/frio/scheme/' . $scheme . '.php')) {
 				$schemefile = 'view/theme/frio/scheme/' . $scheme . '.php';
 				require_once $schemefile;
diff --git a/view/theme/frio/php/scheme.php b/view/theme/frio/php/scheme.php
index 9e3f610cd5..f3150b52f3 100644
--- a/view/theme/frio/php/scheme.php
+++ b/view/theme/frio/php/scheme.php
@@ -25,7 +25,7 @@ function get_scheme_info($scheme)
 	$theme = \get_app()->getCurrentTheme();
 	$themepath = 'view/theme/' . $theme . '/';
 	if (empty($scheme)) {
-		$scheme = PConfig::get(local_user(), 'frio', 'scheme', PConfig::get(local_user(), 'frio', 'scheme'));
+		$scheme = PConfig::get(local_user(), 'frio', 'scheme', PConfig::get(local_user(), 'frio', 'schema'));
 	}
 
 	$info = [