fix:修复同步状态时间隔时间空指针问题

src/main/java/com/iflytop/handacid/app/service/DeviceService.java

@@ -32,7 +32,7 @@ public class DeviceService {
         }
         if(syncOperationsDTO.getDelay() != null){
             deviceState.setDelay(syncOperationsDTO.getDelay());
-            systemConfigService.updateValueByKey(SystemConfigKey.SOLUTION_ADD_DELAY, syncOperationsDTO.getMode().toString());
+            systemConfigService.updateValueByKey(SystemConfigKey.SOLUTION_ADD_DELAY, syncOperationsDTO.getDelay().toString());
         }
         if(syncOperationsDTO.getChannels() != null){
             for (SyncOperationsChannel syncOperationsChannel : syncOperationsDTO.getChannels()) {