Index: ssts-sterile/src/main/java/com/forgon/disinfectsystem/sterilizationmanager/foreignproxydisinfection/service/ForeignProxyDisinfectionManagerImpl.java
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diff -u -r13865 -r13878
--- ssts-sterile/src/main/java/com/forgon/disinfectsystem/sterilizationmanager/foreignproxydisinfection/service/ForeignProxyDisinfectionManagerImpl.java	(.../ForeignProxyDisinfectionManagerImpl.java)	(revision 13865)
+++ ssts-sterile/src/main/java/com/forgon/disinfectsystem/sterilizationmanager/foreignproxydisinfection/service/ForeignProxyDisinfectionManagerImpl.java	(.../ForeignProxyDisinfectionManagerImpl.java)	(revision 13878)
@@ -630,7 +630,9 @@
 			printParam[1] = tousseInstance.getTousseName();
 			printParam[2] = "";
 			printParam[3] = tousseInstance.getSterilingType();
-			printParam[4] = sdf.format(tousseInstance.getValidUntil());
+			if(tousseInstance.getValidUntil() != null){
+				printParam[4] = sdf.format(tousseInstance.getValidUntil());
+			}
 			printParam[5] = TousseInstanceUtils.safelyGetSterileStartDateStr(tousseInstance);
 			printParamList.add(printParam);
 		}