Fatal error on install with Tags and I18n plugins

[macik]

Trying to install latest (development) version from here.

Selecting to instal both Tags and I18n plugins.
On last install stage (plugin installation) getting error.
See stack:

#0 cot_diefatal(SQL error 42S21: Column already exists: 1060 Duplicate column name 'tag_locale') 
    called at [\sites\cot918_\system\database.php:574] 
#1 CotDB->query(ALTER TABLE cot_tag_references ADD COLUMN `tag_locale` VARCHAR(8) NOT NULL DEFAULT '') 
    called at [\sites\cot918_\plugins\i18n\setup\i18n.install.php:18] 
#2 include(\sites\cot918_\plugins\i18n\setup\i18n.install.php) 
    called at [\sites\cot918_\system\extensions.php:538] 
#3 cot_extension_install(i18n, ) 
    called at [\sites\cot918_\modules\install\inc\install.install.php:321] 
#4 include(\sites\cot918_\modules\install\inc\install.install.php) 
    called at [\sites\cot918_\install.php:142] 

[macik]

False alarm. Error located in local enviroment.