I made a mistake, select "1" in "Automatic Closing" (Setting in Disqus) to "Do not allow comments after 1 days" > Save changes.
But now, when i change "1" to "0" > Save changes. All my old posts still Closed (Mean can not comment because it closed). Help me to disable and recover my posts back to normal.
My site is http://giangblog.com And you can see that