diff --git a/comic/models.py b/comic/models.py
index c8bdced..33af92a 100644
--- a/comic/models.py
+++ b/comic/models.py
@@ -203,6 +203,8 @@ class ComicBook(models.Model):
                     book = ComicBook.process_comic_book(next_comic, self.directory)
                 else:
                     book = ComicBook.process_comic_book(next_comic)
+            if type(book) is str:
+                raise IndexError
             comic_path = urlsafe_base64_encode(book.selector.bytes)
             cs, _ = ComicStatus.objects.get_or_create(comic=book, user=user)
             index = cs.last_read_page
@@ -258,12 +260,16 @@ class ComicBook(models.Model):
             comic_full_path = path.join(base_dir, directory.get_path(), comic_file_name)
         else:
             comic_full_path = path.join(base_dir, comic_file_name)
+
         try:
             cbx = rarfile.RarFile(comic_full_path)
         except rarfile.NotRarFile:
-            cbx = zipfile.ZipFile(comic_full_path)
-        except zipfile.BadZipfile:
-            return False
+            cbx = None
+        if not cbx:
+            try:
+                cbx = zipfile.ZipFile(comic_full_path)
+            except zipfile.BadZipFile:
+                return comic_file_name
         with atomic():
             if directory:
                 book = ComicBook(file_name=comic_file_name,
diff --git a/comic/templates/comic/comic_list.html b/comic/templates/comic/comic_list.html
index f308b4b..851b8e3 100644
--- a/comic/templates/comic/comic_list.html
+++ b/comic/templates/comic/comic_list.html
@@ -46,18 +46,23 @@ $(document).ready(function() {
             "url": "{{ json_url }}",
             "data": function ( d ) {
                 d.csrfmiddlewaretoken = Cookies.get('csrftoken');
-            },
+            }
         },
         "rowCallback": function( row, data, index ) {
             var r = $(row);
             var cols = $('td:nth-child(n+2)', row);
-            cols.attr('data-href', data['url']);
-            cols.attr('style', 'cursor: pointer;')
-            cols.click(function() {
-                window.document.location = $(this).data("href");
-            });
+
+            if (data['selector'] === '0') {
+
+            } else {
+                cols.attr('data-href', data['url']);
+                cols.attr('style', 'cursor: pointer;');
+                cols.click(function () {
+                    window.document.location = $(this).data("href");
+                });
+            }
             var tds = $('td:eq(0)', row);
-            if (data['type'] == 'directory'){
+            if (data['type'] === 'directory') {
                 tds.html('');
             } else {
                 tds.html('<input type="checkbox" name="selected" value="'+data['selector']+'" data-type="'+data['type']+'"/>');
@@ -65,25 +70,25 @@ $(document).ready(function() {
                 cb.change(function() {
                     $(this).closest('tr').toggleClass('info')
                 });
-            };
+            }
         },
         "drawCallback": function( settings ) {
             var tds = $('table tr td:first-child');
             tds.click(function(event){
                 if (!$(event.target).is('input')) {
-                    var $cb = $('input', this)
+                    var $cb = $('input', this);
                     $cb.click();
-                };
+                }
             });
         },
         "columns": [
             { "data" : "blank", "orderable": false },
             { "data" : "icon", "orderable": false },
             { "data" : "name" },
-            { "data" : "label" },
+            {"data": "label"}
         ],
 
-        "order": [[ 2, 'asc' ]],
+        "order": [[2, 'asc']]
     });
     $(".clickable-row").click(function() {
         window.document.location = $(this).data("href");
@@ -100,12 +105,12 @@ $(document).ready(function() {
 
     });
     $('#select-all').click(function(event){
-        var cb = $('input', this)
+        var cb = $('input', this);
         if (!$(event.target).is('input')) {
             cb.click();
-        };
+        }
         $('table tr td:first-child input').each(function(chkbx) {
-            row = $(this)
+            row = $(this);
             if (row.prop('checked') != cb.prop('checked')){
                 row.click();
             }
diff --git a/comic/util.py b/comic/util.py
index 099596b..ccf118e 100644
--- a/comic/util.py
+++ b/comic/util.py
@@ -98,16 +98,24 @@ class DirFile:
         self.type = 'directory'
 
     def populate_comic(self, comic, user):
-        self.icon = 'glyphicon-book'
-        self.name = comic.file_name
-        status, created = ComicStatus.objects.get_or_create(comic=comic, user=user)
-        if created:
-            status.save()
-        self.selector = urlsafe_base64_encode(comic.selector.bytes).decode()
-        self.location = '/comic/read/{0}/{1}/'.format(self.selector,
-                                                      status.last_read_page)
-        self.label = generate_label(comic, status)
-        self.type = 'book'
+        if type(comic) == str:
+            self.icon = 'glyphicon-remove'
+            self.name = comic
+            self.selector = '0'
+            self.location = '/'
+            self.label = '<center><span class="label label-danger">Error</span></center>'
+            self.type = 'book'
+        else:
+            self.icon = 'glyphicon-book'
+            self.name = comic.file_name
+            status, created = ComicStatus.objects.get_or_create(comic=comic, user=user)
+            if created:
+                status.save()
+            self.selector = urlsafe_base64_encode(comic.selector.bytes).decode()
+            self.location = '/comic/read/{0}/{1}/'.format(self.selector,
+                                                          status.last_read_page)
+            self.label = generate_label(comic, status)
+            self.type = 'book'
 
 
 def generate_directory(user, directory=False):
diff --git a/comic_auth/forms.py b/comic_auth/forms.py
index 6228970..c98c360 100644
--- a/comic_auth/forms.py
+++ b/comic_auth/forms.py
@@ -1,5 +1,6 @@
+from captcha.fields import CaptchaField
 from django import forms
-from captcha.fields import ReCaptchaField
+
 from comic.models import Setting
 
 
@@ -33,7 +34,7 @@ class LoginForm(forms.Form):
             public_key = Setting.objects.get(name='RECAPTCHA_PUBLIC_KEY').value
             private_key = Setting.objects.get(name='RECAPTCHA_PRIVATE_KEY').value
 
-            captcha = ReCaptchaField(
+            captcha = CaptchaField(
                 label='',
                 public_key=public_key,
                 private_key=private_key,
diff --git a/requirements.txt b/requirements.txt
index 18cd6b7..1b52458 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 ujson
-django
\ No newline at end of file
+django
+django-simple-captcha
\ No newline at end of file