Reduce log spam when in DEBUG mode.

src/main/java/org/qortal/arbitrary/ArbitraryDataReader.java

@@ -363,7 +363,7 @@ public class ArbitraryDataReader {
                 }
 
                 // Throw a missing data exception, which allows subsequent layers to fetch data
-                LOGGER.debug(message);
+                LOGGER.trace(message);
                 throw new MissingDataException(message);
             }
         }