Duplicate Insert Error and Only one link updated on each leech

I am very happy to see this module and I really need this. I get duplicate entry error when leech is done,

Source URL: http://news.google.com/news?hl=en&ned=us&q=climate+change&ie=UTF-8&outpu...

Error:

* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '564-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 564) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '564-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 564) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '624-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 624) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '548-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 548) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '564-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 564) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '624-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 624) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '548-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 548) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '292-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 292) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '584-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 584) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '548-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 548) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.
* user warning: Duplicate entry '545-239' for key 1 query: INSERT INTO term_node (nid, tid) VALUES (239, 545) in /home/.........../public_html/.........../includes/database.mysql.inc on line 121.

This error goes on and on for many pages and so I have given few here. This happens each time when I leech manually or by cron run.

I get only one item updated each time either on Cron run or Manual leech, it also says that some for eg. 2 duplicates found.

I have all the required modules installed and followed the instructions specified in the README.txt. Kindly help me to fix this issue up. I require leech to get news as feeds from various aggregator sources and update them.