diff --git a/atdb/taskdatabase/models.py b/atdb/taskdatabase/models.py
index db40f2d74c8e09c424d92d41a3e28b68223decdc..899515245061a6c9bb022398217b5ef326a056f3 100644
--- a/atdb/taskdatabase/models.py
+++ b/atdb/taskdatabase/models.py
@@ -59,7 +59,10 @@ class Task(models.Model):
 
     @property
     def predecessor_status(self):
-        return self.predecessor.status
+        try:
+            return self.predecessor.status
+        except:
+            return "unknown"
 
 class LogEntry(models.Model):
     cpu_cycles = models.IntegerField(null=True,blank=True)
diff --git a/atdb/taskdatabase/templates/taskdatabase/index.html b/atdb/taskdatabase/templates/taskdatabase/index.html
index 5ba715b66f88e2b5a232332d4eff3a4d864e9ea4..58804fffcf1fb54bab14f6c5471c47d49e8f88c1 100644
--- a/atdb/taskdatabase/templates/taskdatabase/index.html
+++ b/atdb/taskdatabase/templates/taskdatabase/index.html
@@ -80,7 +80,7 @@
         {% include 'taskdatabase/pagination.html' %}
        </div>
     </div>
-    <p class="footer"> Version 1.0.0 (28 oct 2021 - 11:00)
+    <p class="footer"> Version 1.0.0 (28 oct 2021 - 11:30)
 
 </div>