Version 5.0.0 beta 4

applications/nexus/sources/Transaction/Transaction.php

@@ -448,7 +448,7 @@ class Transaction extends ActiveRecord
 	 */
 	public function get_credit() : Money
 	{		
-		return new Money( $this->_data['credit'], $this->_data['currency'] );
+		return new Money( $this->_data['credit'] ?? "0", $this->_data['currency'] );
 	}
 	
 	/**