Duplicate column name 'ya_description'

NamiException in /var/www/eniseytv/data/www/enisey.tv/includes/nami/NamiMysqlDbCursor.class.php on line 44.

#CallSource fileLine
7NamiMysqlDbCursor->execute( 'ALTER TABLE `newspublication` ADD COLUMN `ya_description` LONGTEXT NULL' )/includes/nami/NamiCore.class.php265
6NamiCore->syncdb()/includes/nami/NamiCore.class.php28
5NamiCore::sync()/includes/core/Builder.class.php53
4Builder::init()
3call_user_func( Array ( [0] => Builder [1] => init ) )/includes/core/NamiAutoloadClass.class.php27
2NamiAutoloadClass::autoload( 'Builder' )
1spl_autoload_call( 'Builder' )/index.php9