need help plz -Database error

[Lynne]

That is from a modification (there is no field names filesize in the attachment table any longer). Disable the modification and the error will go away.

If you can't get into your admin cp, disable your modifications/plugins though config.php
Note: To temporarily disable the plugin system, edit config.php and add this line right under <?php

PHP Code:

define('DISABLE_HOOKS', true);