[Plugin: WordPress Form Manager] Form throws "Unknown column '0' in 'field list&

Form Manager 1.6.38 on WordPress 3.4.2.

Used the “Insert Saved Form” link at the top of the Edit screen to copy a form (ID = 3) to a new instance (ID = 4), then edited the fields copied across and added a couple of extras manually. All worked fine until testing the form, and it threw an “Unknown column ‘0’ in ‘field list'” SQL error.

Looking into the database tables, I noted that the type prefix on all the copied-over unique_name identifiers in the tables wp_fm_items and wp_fm_data_4 were all missing. Changing the unique_name identifiers manually through SQL editor to the right format in wp_frm_items and wp_fm_data_4 fixed the problem and the form submitted OK with emails sent as per normal.

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