error upgrading from 1.1.2 to any other version

Hi,

I'm trying to upgrade from version 1.1.2 to latest version.

I have tried also to upgrade before to 1.1.5 or 1.1.3 with the same error.

For example if I try to upgrade from DB version 1.1.005 to 1.1.007 I receive the following errors:

L'aggiornamento è fallito con il seguente errore:

Unhandled System_Db_Exception: Duplicate column name 'is_archived' in /var/www/html/system/db/mysqli/engine.inc.php on line 287
Stack trace:
#0 /var/www/html/system/db/mysqli/engine.inc.php(101): System_Db_Mysqli_Engine->handleError(Object(mysqli))
#1 /var/www/html/system/db/mysqli/engine.inc.php(79): System_Db_Mysqli_Engine->executeQuery('ALTER TABLE pro...')
#2 /var/www/html/system/db/connection.inc.php(215): System_Db_Mysqli_Engine->execute('ALTER TABLE pro...', Array)
#3 /var/www/html/system/db/connection.inc.php(186): System_Db_Connection->executeArgs('ALTER TABLE {pr...', Array)
#4 /var/www/html/system/db/mysqli/schemagenerator.inc.php(96): System_Db_Connection->execute('ALTER TABLE {pr...')
#5 /var/www/html/system/db/mysqli/schemagenerator.inc.php(74): System_Db_Mysqli_SchemaGenerator->executeAlterTable('projects')
#6 /var/www/html/system/db/schemagenerator.inc.php(72): System_Db_Mysqli_SchemaGenerator->executeAddFields('projects')
#7 /var/www/html/admin/setup/updater.inc.php(273): System_Db_SchemaGenerator->addFields('projects', Array)
#8 /var/www/html/admin/setup/update.php(122): Admin_Setup_Updater->updateDatabase('1.1.005')
#9 /var/www/html/admin/setup/update.php(106): Admin_Setup_Update->updateDatabase()
#10 /var/www/html/admin/setup/update.php(42): Admin_Setup_Update->processForm()
#11 /var/www/html/system/web/component.inc.php(100): Admin_Setup_Update->execute()
#12 /var/www/html/system/web/application.inc.php(77): System_Web_Component->run()
#13 /var/www/html/system/core/application.inc.php(210): System_Web_Application->execute()
#14 /var/www/html/system/bootstrap.inc.php(130): System_Core_Application->run()
#15 /var/www/html/admin/setup/update.php(148): System_Bootstrap::run('Common_Applicat...', 'Admin_Setup_Upd...')
#16 {main}

I cannot figure what goes wrong.

Nicola