diff --git a/staffeln/conductor/backup.py b/staffeln/conductor/backup.py
index 32ad315..930ae0b 100755
--- a/staffeln/conductor/backup.py
+++ b/staffeln/conductor/backup.py
@@ -37,6 +37,7 @@
         "instance_name",
         "volume_name",
         "incremental",
+        "reason",
     ],
 )
 
diff --git a/staffeln/conductor/result.py b/staffeln/conductor/result.py
index c7ff1ab..a1587d8 100644
--- a/staffeln/conductor/result.py
+++ b/staffeln/conductor/result.py
@@ -83,7 +83,7 @@
                 "<h4>${FAILED_VOLUME_LIST}</h4><br>"
             )
 
-            for project_id in project_success:
+            if project_id in project_success:
                 success_volumes = "<br>".join(
                     [
                         "Volume ID: %s, Backup ID: %s, backup mode: %s"
@@ -97,7 +97,7 @@
                 )
             else:
                 success_volumes = "<br>"
-            for project_id in project_failed:
+            if project_id in project_failed:
                 failed_volumes = "<br>".join(
                     [
                         "Volume ID: %s, Reason: %s" % (str(e.volume_id), str(e.reason))
diff --git a/staffeln/objects/queue.py b/staffeln/objects/queue.py
index 39e841b..f1f6458 100644
--- a/staffeln/objects/queue.py
+++ b/staffeln/objects/queue.py
@@ -21,7 +21,7 @@
         "volume_name": sfeild.StringField(),
         "instance_name": sfeild.StringField(),
         "incremental": sfeild.BooleanField(),
-        "reason": sfeild.StringField(),
+        "reason": sfeild.StringField(nullable=True),
     }
 
     @base.remotable_classmethod