fix

apps/efka/src/efka_agent.erl

@@ -400,7 +400,13 @@ handle_event(info, {'DOWN', MRef, process, TransportPid, Reason}, _, State = #st
 %% terminate. It should be the opposite of Module:init/1 and do any
 %% necessary cleaning up. When it returns, the gen_statem terminates with
 %% Reason. The return value is ignored.
-terminate(_Reason, _StateName, _State = #state{}) ->
+terminate(_Reason, _StateName, _State = #state{transport_pid = TransportPid}) ->
+    case is_pid(TransportPid) andalso is_process_alive(TransportPid) of
+        true ->
+            efka_transport:stop(TransportPid);
+        false ->
+            ok
+    end,
     ok.
 
 %% @private