->FTP users can use the following command to cleanup Magento caches:
mrm -r ./var/cache ; mkdir ./var/cache
mrm -r ./var/full_page_cache ; mkdir ./var/full_page_cache
not just another WordPress site
->FTP users can use the following command to cleanup Magento caches:
mrm -r ./var/cache ; mkdir ./var/cache
mrm -r ./var/full_page_cache ; mkdir ./var/full_page_cache