diff --git a/main.py b/main.py
index 7a52ec2..a966f56 100644
--- a/main.py
+++ b/main.py
@@ -258,20 +258,20 @@ def session(id):
         con.commit()
         cur.close()
 
-
-        return render_template("session.html",
-                               zeit=zeit,
-                               aktivitaet=aktivitaet,
-                               user=user,
-                               eventname=eventname[0],
-                               eventzeit=eventzeit[0],
-                               game=game,
-                               useranzahl=useranzahl,
-                               creator=creator,
-                               mate=mate,
-                               uids=uids,
-                               unames=unames,
-                               der=uptime())
+        if len(eventzeit) > 0 and len(eventname) > 0:
+            return render_template("session.html",
+                                   zeit=zeit,
+                                   aktivitaet=aktivitaet,
+                                   user=user,
+                                   eventname=eventname[0],
+                                   eventzeit=eventzeit[0],
+                                   game=game,
+                                   useranzahl=useranzahl,
+                                   creator=creator,
+                                   mate=mate,
+                                   uids=uids,
+                                   unames=unames,
+                                   der=uptime())
 
     else:
         warning_log(" called /session without being logged in")