Long cast needed

src/engine/mobileAI/MobAI.java

@@ -814,8 +814,8 @@ public class MobAI {
                         }
                     }
                 }
-            } else if (System.currentTimeMillis() > (aiAgent.deathTime + (aiAgent.spawnDelay * 1000))) {
-                aiAgent.respawnTime = aiAgent.deathTime + (aiAgent.spawnDelay * 1000);
+            } else if (System.currentTimeMillis() > (aiAgent.deathTime + (aiAgent.spawnDelay * 1000L))) {
+                aiAgent.respawnTime = aiAgent.deathTime + (aiAgent.spawnDelay * 1000L);
                 Respawner.respawnQueue.put(aiAgent);
             }
         } catch (Exception e) {