Hey Bach Pham,
After using the plugin for a couple of successful posts it is no longer posting... The last time I had the problem was because my Twitter permissions weren't set properly. I changed them to read, write, and direct messages and the plugin started to work but since then it has stopped working. Something must have changed but I don't know what. Can you help me?
Obs:
1) K2 says the post was successfully tweeted
2) The JO Auto Twitter manager says it was also successful
3) The post does not actually get posted - it does not show up on Twitter.
Looking forward to your reply. Thanks