[SOLVED] Upgrade to 2.0.3.1 Notice: Error: Can't DROP '

I upgraded from 1.5.5.1 to 2.0.3.1 and I got this please help:

Notice: Error: Can't DROP 'option_value'; check that column/key exists
Error No: 1091
Error in: /hermes/bosnaweb07a/b1245/sl.pamsdrea/public_html/---------/install/model/upgrade.php line 349
ALTER TABLE `oc_product_option` DROP `option_value` in /hermes/bosnaweb07a/b1245/sl.pamsdrea/public_html/-------/system/library/db/mysql.php on line 55

Warning: Cannot modify header information - headers already sent by (output started at /hermes/bosnaweb07a/b1245/sl.pamsdrea/public_html/-------/system/library/db/mysql.php:55) in /hermes/bosnaweb07a/b1245/sl.pamsdrea/public_html/-----------/system/library/response.php on line 12