log warning if feed cannot be parsed

Signed-off-by: Benjamin Brahmer <info@b-brahmer.de>

lib/Fetcher/FeedFetcher.php

@@ -19,6 +19,7 @@
 use FeedIo\FeedInterface;
 use FeedIo\FeedIo;
 use FeedIo\Reader\ReadErrorException;
+use FeedIo\Reader\NoAccurateParserException;
 use GuzzleHttp\Client;
 use GuzzleHttp\Exception\RequestException;
 use GuzzleHttp\Exception\ConnectException;
@@ -135,7 +136,19 @@ public function fetch(
             $lastModified = null;
         }
         $url = $url2->getNormalizedURL();
-        $resource = $this->reader->read($url, null, $lastModified);
+
+        try {
+            $resource = $this->reader->read($url, null, $lastModified);
+        } catch (NoAccurateParserException) {
+            $this->logger->warning(
+                'Feed {url} cannot be be parsed',
+                [
+                'url'   => $url,
+                ]
+            );
+            throw new ReadErrorException("Feed cannot be parsed.");
+        }
+
 
         $location     = $resource->getUrl();
         $parsedFeed   = $resource->getFeed();