Update app.py

app.py

@@ -5,13 +5,18 @@ import re
 
 # Download required NLTK resources
 try:
-    nltk.data.find('vader_lexicon')
+    nltk.data.find('sentiment/vader_lexicon.zip')
 except nltk.downloader.DownloadError:
     nltk.download('vader_lexicon')
+except LookupError:
+    nltk.download('vader_lexicon')
+
 try:
-    nltk.data.find('punkt')
+    nltk.data.find('tokenizers/punkt/english.pickle')
 except nltk.downloader.DownloadError:
     nltk.download('punkt')
+except LookupError:
+    nltk.download('punkt')
 
 def calculate_scores(work_completion, delay_reports, incident_logs):
     """