diff --git a/rwth_nb/misc/feedback.py b/rwth_nb/misc/feedback.py
index d1c1c4beae699528b16e1c955bc83471d1c4f2d1..baf69cc770bb44dab0a5b9e4eed0779b0a28f25c 100644
--- a/rwth_nb/misc/feedback.py
+++ b/rwth_nb/misc/feedback.py
@@ -84,10 +84,10 @@ class RWTHFeedbackBase:
 
         # Default arguments for toggle_button and textarea
         self.toggle_args = {"options": self.feedback_scale_options,
-                       "index": 2, "description": "", "disabled": False,
-                       "style": {'button_color': rwth_colors['rwth:green-50']}, "tooltips": []}
+                            "index": 2, "description": "", "disabled": False,
+                            "style": {'button_color': rwth_colors['rwth:green-50']}, "tooltips": []}
         self.textarea_args = {"value": "", "placeholder": self.feedback_text['your-feedback'],
-                         "description": "", "disabled": False}
+                              "description": "", "disabled": False}
 
         # self.widgets_container:
         #   dict containing to each id key as defined in q a widget
@@ -278,6 +278,7 @@ class RWTHFeedbackJupyter(RWTHFeedbackBase):
     realm: str, optional
         jupyter submission realm in which the feedback should be stored, is set automatically if None
     """
+
     def __init__(self, feedback_name, questions, lang='en', realm=None):
         self.realm = realm
 
@@ -290,7 +291,8 @@ class RWTHFeedbackJupyter(RWTHFeedbackBase):
         self.submission_type = 'jupyter'
 
     def load_entries(self):
-        self.entries = [submission['data'] for submission in self.sub.get() if type(submission['data']) is dict]
+        self.entries = [submission['data'] for submission in self.sub.get()
+                        if type(submission['data']) is dict and submission['data'].get('name') is not None]
 
     def submit(self):
         # submit to jupyter submission service
@@ -321,6 +323,7 @@ class RWTHFeedbackMail(RWTHFeedbackBase):
     mail_smtp_host: str, optional
         smtp host
     """
+
     def __init__(self, feedback_name, questions, lang='en', feedback_path='feedback.json', mail_to=None,
                  mail_from='feedback@jupyter.rwth-aachen.de', mail_subject=None,
                  mail_smtp_host='smarthost.rwth-aachen.de'):
@@ -510,7 +513,6 @@ class RWTHFeedbackCollector:
         assert len(self.json_files) > 0, 'No json file found.'
 
         for file in self.json_files:
-
             with open(os.path.join(folder_path, file), mode='r', encoding='utf-8') as f:
                 entries = json.load(f)