diff --git a/application/models/organisation/Geschaeftsjahr_model.php b/application/models/organisation/Geschaeftsjahr_model.php
index 9c856f40e..4f0d03b73 100644
--- a/application/models/organisation/Geschaeftsjahr_model.php
+++ b/application/models/organisation/Geschaeftsjahr_model.php
@@ -20,8 +20,8 @@ class Geschaeftsjahr_model extends DB_Model
 	{
 		$query = 'SELECT *
 					FROM public.tbl_geschaeftsjahr
-					WHERE start <= now()
-					AND ende >= now()
+					WHERE start <= CURRENT_DATE
+					AND ende >= CURRENT_DATE
 					ORDER BY start DESC
 					LIMIT 1';
 
diff --git a/include/konto.class.php b/include/konto.class.php
index 8d5129ec7..c23209a06 100644
--- a/include/konto.class.php
+++ b/include/konto.class.php
@@ -164,7 +164,7 @@ class konto extends basis_db
 			return false;
 		}
 
-		if(!is_numeric($this->mahnspanne))
+		if($this->mahnspanne!='' && !is_numeric($this->mahnspanne))
 		{
 			$this->errormsg = "Die Mahnspanne muss eine gueltige Zahl sein";
 			return false;