diff --git a/fet2020/posts/models.py b/fet2020/posts/models.py
index 6980062b..4efe36d9 100644
--- a/fet2020/posts/models.py
+++ b/fet2020/posts/models.py
@@ -40,8 +40,8 @@ class Category(models.Model):
 
 class Post(models.Model):
     # id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
-    legacy_id = models.IntegerField(null=True)
-    legacy_rubrik_id = models.IntegerField(null=True)
+    legacy_id = models.IntegerField(null=True, blank=True)
+    legacy_rubrik_id = models.IntegerField(null=True,blank=True)
     # Titel des Posts
     title = models.CharField(verbose_name="Titel", max_length=200)
     subtitle = models.CharField(max_length=500, null=True, blank=True)
@@ -105,7 +105,7 @@ class Post(models.Model):
         try:
             html = getPadHTML(self.agenda_key)
         except Exception as e:
-            logger.error("Can't get the agenda html from agenda '{}'. Error: {}".format(self.agenda_key, e))
+            logger.error("Can't get the agenda html from agenda '%s'. Error: %s", self.agenda_key, e)
             html = None
 
         return html
@@ -118,8 +118,8 @@ class Post(models.Model):
             if not value or value == "":
                 return value
             self.agenda_key = self.get_agenda_key()
-        request_logger.info("AGENDA KEY: %s " % self.agenda_key)
-        request_logger.info("VALUE: %s " % value)
+        request_logger.info("AGENDA KEY: %s ", self.agenda_key)
+        request_logger.info("VALUE: %s ", value)
         if self.agenda_key:
             try:
                 setPadHTML(self.agenda_key, value)
@@ -172,8 +172,8 @@ class Post(models.Model):
             else:
                 return ""
 
-    def key(self):
-        return self.slug or self.id
+    #def key(self):
+    #    return self.slug or self.id
 
     def find_an_image(self):
         "find an image via another post"