1 files changed, 7 insertions, 1 deletions
diff --git a/src/org/traccar/protocol/V680ProtocolDecoder.java b/src/org/traccar/protocol/V680ProtocolDecoder.java
index 10f17b184..57e5982dc 100644
--- a/src/org/traccar/protocol/V680ProtocolDecoder.java
+++ b/src/org/traccar/protocol/V680ProtocolDecoder.java
@@ -22,6 +22,7 @@ import java.util.regex.Pattern;
 import org.jboss.netty.channel.Channel;
 import org.jboss.netty.channel.ChannelHandlerContext;
 import org.traccar.GenericProtocolDecoder;
+import org.traccar.helper.Log;
 import org.traccar.model.DataManager;
 import org.traccar.model.Position;
 
@@ -80,7 +81,12 @@ public class V680ProtocolDecoder extends GenericProtocolDecoder {
 
         // Get device by IMEI
         String imei = parser.group(index++);
-        position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
+        try {
+            position.setDeviceId(getDataManager().getDeviceByImei(imei).getId());
+        } catch(Exception error) {
+            Log.warning("Unknown device - " + imei);
+            return null;
+        }
 
         // User
         extendedInfo.append("<user>");