Error - by: Richard Juknavorian

Good afternoon.

I bought payment forms and Now I am getting this error when I want to get into the forms section

1054 Unknown column 'tbl.paid_amount' in 'order clause' SQL=SELECT tbl.*,SUM(b.amount) as total_payment FROM #__pf_forms AS tbl LEFT JOIN #__pf_payments AS b ON ( tbl.id = b.form_id AND b.published=1 ) GROUP BY tbl.id ORDER BY tbl.paid_amount ASC LIMIT 0, 20

Thank you for your anticipated help
Richard Juknavorian