diff --git a/application/forms/ConfigForm.php b/application/forms/ConfigForm.php
index aa67ff1..6d4d2dc 100644
--- a/application/forms/ConfigForm.php
+++ b/application/forms/ConfigForm.php
@@ -11,7 +11,7 @@ public function init()
         $this->setSubmitLabel(t('Save Changes'));
     }
 
-    public function createElements(array $formData)
+    public function createElements(array $formData): void
     {
         $this->addElement('number', 'http_timeout', [
             'label' => t('Timeout for HTTP calls in seconds'),
diff --git a/application/forms/FeedForm.php b/application/forms/FeedForm.php
index 437923a..965953d 100644
--- a/application/forms/FeedForm.php
+++ b/application/forms/FeedForm.php
@@ -141,7 +141,7 @@ protected function assemble(): void
         }
     }
 
-    public function isValid()
+    public function isValid(): bool
     {
         if ($this->getPressedSubmitElement()->getName() === 'delete') {
             $csrfElement = $this->getElement('CSRFToken');
@@ -175,7 +175,7 @@ public function hasDeleteButton(): bool
         return $this->deleteButtonName !== null;
     }
 
-    public function shouldBeDeleted()
+    public function shouldBeDeleted(): bool
     {
         if (!$this->hasDeleteButton()) {
             return false;
diff --git a/library/Feeds/Parser/JsonfeedParser.php b/library/Feeds/Parser/JsonfeedParser.php
index 254fac7..c474df7 100644
--- a/library/Feeds/Parser/JsonfeedParser.php
+++ b/library/Feeds/Parser/JsonfeedParser.php
@@ -19,7 +19,7 @@ class JsonfeedParser
      */
     public static function parse(string $raw): Feed
     {
-        $json = json_decode($raw, true);
+        $json = json_decode($raw, true, 512, JSON_THROW_ON_ERROR);
         if ($json === null) {
             throw new Exception('Invalid JSONfeed');
         }
diff --git a/library/Feeds/Parser/RSSParser.php b/library/Feeds/Parser/RSSParser.php
index 9fae579..ca18b1b 100644
--- a/library/Feeds/Parser/RSSParser.php
+++ b/library/Feeds/Parser/RSSParser.php
@@ -86,13 +86,6 @@ protected static function parseDateTime(string $dateStr): ?DateTime
             );
         }
 
-        if ($datetime === false) {
-            $datetime = DateTime::createFromFormat(
-                DateTimeInterface::RFC7231,
-                $dateStr,
-            );
-        }
-
         if ($datetime === false) {
             try {
                 $datetime = new DateTime($dateStr);
diff --git a/library/Feeds/Storage/FilesystemStorage.php b/library/Feeds/Storage/FilesystemStorage.php
index e400b03..d82257e 100644
--- a/library/Feeds/Storage/FilesystemStorage.php
+++ b/library/Feeds/Storage/FilesystemStorage.php
@@ -3,6 +3,7 @@
 namespace Icinga\Module\Feeds\Storage;
 
 use Icinga\Application\Icinga;
+use Icinga\Application\Logger;
 use Icinga\Exception\NotReadableError;
 use Icinga\Exception\NotWritableError;
 use Icinga\Exception\SystemPermissionException;
@@ -67,6 +68,7 @@ protected function loadFeedFile(string $filename): FeedDefinition
             throw new NotReadableError('Could not read file %s', $filePath);
         }
 
+        // This will throw an expection, which we will catch just like the others
         $json = Json::decode($data, true);
         $feed = FeedDefinition::fromArray($json);
 
@@ -171,7 +173,12 @@ protected function load(): void
                 continue;
             }
 
-            $feed = $this->loadFeedFile($name);
+            try {
+                $feed = $this->loadFeedFile($name);
+            } catch (Exception $ex) {
+                Logger::error('Failed to load feed file  "%s": %s', $name, $e);
+                continue;
+            }
 
             if ($feed->name === '') {
                 continue;