Symptom

View an EasyTable on the front-end of your website results in an error message being displayed in your templates Message area and the table still appears to work correctly. The text of the message will be similar to this:

No valid database connection Unknown column '' in 'field list' SQL=SELECT `id`,
 `` FROM xx_easytables_table_data_N order by `id` ASC LIMIT 0, 103

Solution

Of the two cases where this problem has been reported JoomFish was installed on the websites.

Upgrading JoomFish to the latest version fixes the problem.