diff --git a/app/corpora/background_functions.py b/app/corpora/background_functions.py
index 1b8f7fc0..55d9af6b 100644
--- a/app/corpora/background_functions.py
+++ b/app/corpora/background_functions.py
@@ -5,16 +5,20 @@ def delete_corpus_(app, corpus_id):
     with app.app_context():
         corpus = Corpus.query.get(corpus_id)
         if corpus is None:
-            raise Exception('Corpus {} not found!'.format(corpus_id))
-        corpus.delete()
+            # raise Exception('Corpus {} not found!'.format(corpus_id))
+            pass
+        else:
+            corpus.delete()
 
 
 def delete_corpus_file_(app, corpus_file_id):
     with app.app_context():
         corpus_file = CorpusFile.query.get(corpus_file_id)
         if corpus_file is None:
-            raise Exception('Corpus file {} not found!'.format(corpus_file_id))
-        corpus_file.delete()
+            # raise Exception('Corpus file {} not found!'.format(corpus_file_id))
+            pass
+        else:
+            corpus_file.delete()
 
 
 def edit_corpus_file_(app, corpus_file_id):
@@ -22,4 +26,5 @@ def edit_corpus_file_(app, corpus_file_id):
         corpus_file = CorpusFile.query.get(corpus_file_id)
         if corpus_file is None:
             raise Exception('Corpus file {} not found!'.format(corpus_file_id))
-        corpus_file.insert_metadata()
+        else:
+            corpus_file.insert_metadata()