Error in file: "/var/www/html/app/code/local/Hicart/Notifications/sql/notifications_setup/upgrade-1.0.1-1.0.2.sql" - SQLSTATE[42S21]: Column already exists: 1060 Duplicate column name 'schedule_date'

#0 /var/www/html/app/code/core/Mage/Core/Model/Resource/Setup.php(644): Mage::exception('Mage_Core', 'Error in file: ...')
#1 /var/www/html/app/code/core/Mage/Core/Model/Resource/Setup.php(437): Mage_Core_Model_Resource_Setup->_modifyResourceDb('upgrade', '1.0.1', '1.0.2')
#2 /var/www/html/app/code/core/Mage/Core/Model/Resource/Setup.php(320): Mage_Core_Model_Resource_Setup->_upgradeResourceDb('1.0.1', '1.0.2')
#3 /var/www/html/app/code/core/Mage/Core/Model/Resource/Setup.php(235): Mage_Core_Model_Resource_Setup->applyUpdates()
#4 /var/www/html/app/code/core/Mage/Core/Model/App.php(428): Mage_Core_Model_Resource_Setup::applyAllUpdates()
#5 /var/www/html/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Model_App->_initModules()
#6 /var/www/html/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#7 /var/www/html/index.php(96): Mage::run('', 'store')
#8 {main}