quickfix mensa json parsing

mensa.py

@@ -119,16 +119,19 @@ def mensa(update: Update, context: CallbackContext):
     else:
         message = "Das Essen für %s in der %s \n\n" % (today_data["date"], MENSA_NAME[which])
         for cat in today_data['categories']:
-            label = cat['name']
-            meals = cat['meals']
-            if label not in filter_categories and (
-                    any(filtered in label for filtered in diet) or
-                    [item['name'].replace('\xad', '') for item in meals if
-                     any(filtered in item['name'].replace('\xad', '') for filtered in diet)]):  # TODO: simplify
-                meal_line = "*%s*\n" % label
-                for meal in meals:
-                    meal_line += meal['name'].strip() + "\n"
-                message += meal_line + '\n'
+            try:
+                label = cat['name']
+                meals = cat['meals']
+                if label not in filter_categories and (
+                        any(filtered in label for filtered in diet) or
+                        [item['name'].replace('\xad', '') for item in meals if
+                         any(filtered in item['name'].replace('\xad', '') for filtered in diet)]):  # TODO: simplify
+                    meal_line = "*%s*\n" % label
+                    for meal in meals:
+                        meal_line += meal['name'].strip() + "\n"
+                    message += meal_line + '\n'
+            except:  # TODO: catch correct exception
+                print("Could not fetch meal. Skipping.")
 
     update.message.reply_text(message, ParseMode.MARKDOWN)