fix bug

dao/eth.go

@@ -258,7 +258,7 @@ func (d *Dao) HandleTasks() {
 					continue
 				}
 
-				if event.UpdatedAt.Compare(event.CreatedAt) > 0 && (int(event.UpdatedAt.Sub(time.Now()).Seconds()) < d.c.TaskRetryInterval) {
+				if event.UpdatedAt.Compare(event.CreatedAt) > 0 && (int(time.Now().Sub(event.UpdatedAt).Seconds()) < d.c.TaskRetryInterval) {
 					// skip recently failed tasks.
 					continue
 				}