error on checkout...

[petebham]

I'm new to all this so please go easy!

any idea what this error means on checkout?>

500 - JDatabaseMySQLi::query: 1054 - Unknown column 'calc_mathop' in 'field list' SQL=INSERT INTO `jos_virtuemart_order_calc_rules` (`virtuemart_order_id`,`virtuemart_vendor_id`,`calc_rule_name`,`calc_kind`,`calc_amount`,`calc_mathop`,`calc_value`,`calc_currency`,`calc_params`,`created_on`,`created_by`,`modified_on`,`modified_by`) VALUES ('11','1','','payment','0','','','','','2023-04-23 11:53:20','44','2023-04-23 11:53:20','44')

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[jenkinhill]

VirtueMart/Joomla versions? Is this an old site that did work? Has it been updated? Or a new site/installation.?