Magento Php Upgrade : Error

When i run magento upgrade, i get the follwing error:
Im using xammp, windows. Can some assist me please>?

{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"Unknown filter type [phonetic] for [phonetic]"}],"type":"illegal_argument_exception","reason":"Unknown filter type [phonetic] for [phonetic]"},"status":400}