joomla migration from 2.5.8 to 3.1.5 datebase error 1062

[kety jhon]

Hi,
I have recently upgraded my joomla site using the joomla upgrade option from my old 2.5.8 admin area. When I try to access my site now I get error.

Duplicate entry '' for key 'PRIMARY' SQL=INSERT INTO `j25_autotweet_automator` (`lastexec`) VALUES ('2013-09-24 23:54:32')

I'm not sure how to fix this database error.

Even in my administrator login it displays:

1062 Duplicate entry '' for key 'PRIMARY' SQL=INSERT INTO `j25_autotweet_automator` (`lastexec`) VALUES ('2013-09-25 00:02:07')

I backed everything up but I feel like there is a fix for this instead of me going back to 2.5 Has anyone had this problem and resolved it?

site location is http://tikohosting.com

Regards,
kety jhon

[Victor Dani]

Hi Kety,
At this point, you would likely have to go into the database and disable the autotweet automator plugin. Should be able to go to the j25_extensions table, find the plugin, and set the enabled column for it to 0. I would then reinstall the plugin by downloading an updated version from the developer's site
Regards,
Victor Dani