Index: /trunk/FACT++/src/datalogger.cc
===================================================================
--- /trunk/FACT++/src/datalogger.cc	(revision 13669)
+++ /trunk/FACT++/src/datalogger.cc	(revision 13670)
@@ -1021,5 +1021,5 @@
         ostringstream str;
         str << "Format of " << I->getName() << " is empty (ptr=" << I->getData() << ", size=" << I->getSize() << ")... ignoring it.";
-        Error(str);
+        Warn(str);
         return;
     }