but I found following errors when some pages tries to display custom fields.
Dude, what happened to your query?:
SELECT * FROM si_customFields WHERE categorieID = 3; Table 'bambooinvoice.si_customFields' doesn't exist Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /var/www/demo/simpleinvoices/include/smarty/plugins/function.showCustomFields.php on line 21 Above error occured from Product -> Manage Products -> Edit page.
I found there is no table named customFields in db schema.