diff --git a/lib/metadata.js b/lib/metadata.js
index 6f9f57d..921e119 100644
--- a/lib/metadata.js
+++ b/lib/metadata.js
@@ -9,6 +9,10 @@ const KITSU_URL = 'https://anime-kitsu.now.sh';
 const TIMEOUT = 20000;
 
 function getMetadata(id, type = Type.SERIES) {
+  if (!id) {
+    return Promise.reject("no valid id provided");
+  }
+
   const key = id.match(/^\d+$/) ? `kitsu:${id}` : id;
   const metaType = type === Type.MOVIE ? Type.MOVIE : Type.SERIES;
   return cacheWrapMetadata(key,
@@ -86,10 +90,11 @@ async function getImdbId(info) {
           }
         });
       }).catch(() => bing.web(`${info.name} ${info.year || ''} ${info.type} imdb`)
-          .then((results) => results
+          .then(results => results
               .map((result) => result.link)
-              .find(result => result.includes('imdb.com/title/'))
-              .match(/imdb\.com\/title\/(tt\d+)/)[1])));
+              .find(result => result.includes('imdb.com/title/')))
+          .then(result => result && result.match(/imdb\.com\/title\/(tt\d+)/))
+          .then(match => match && match[1])));
 }
 
 async function getKitsuId(info) {
diff --git a/package-lock.json b/package-lock.json
index 108b348..d9f7a1a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1714,7 +1714,7 @@
       }
     },
     "parse-torrent-title": {
-      "version": "git://github.com/TheBeastLT/parse-torrent-title.git#91d711a5c3558baced7d20cb5a5458a859ddede6",
+      "version": "git://github.com/TheBeastLT/parse-torrent-title.git#d6b677ad5e576c9294de1de75c0fd1396bd1ab7b",
       "from": "git://github.com/TheBeastLT/parse-torrent-title.git#master"
     },
     "parseurl": {
diff --git a/scrapers/thepiratebay/thepiratebay_unofficial_dump_scraper.js b/scrapers/thepiratebay/thepiratebay_unofficial_dump_scraper.js
index e74d3d8..3892a4c 100644
--- a/scrapers/thepiratebay/thepiratebay_unofficial_dump_scraper.js
+++ b/scrapers/thepiratebay/thepiratebay_unofficial_dump_scraper.js
@@ -63,7 +63,6 @@ async function scrape() {
     console.log(err);
   });
   lr.on('end', () => {
-    fs.unlink(CSV_FILE_PATH);
     console.log(`finished to scrape tpb dump!`);
   });
 }