modify error

src/main/java/autumn_2023/module/comm/CentralizedControlMessageCoordinator.java

@@ -19,6 +19,8 @@ import adf.core.agent.info.ScenarioInfo;
 import adf.core.agent.info.WorldInfo;
 import adf.core.component.communication.CommunicationMessage;
 import adf.core.component.communication.MessageCoordinator;
+import adf.impl.module.comm.DefaultChannelSubscriber;
+
 import java.util.ArrayList;
 import java.util.List;
 import rescuecore2.standard.entities.StandardEntityURN;