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Joomla Error - Unknown column 'a.client_id' in 'where clause'
Feb 09

Joomla Error - Unknown column 'a.client_id' in 'where clause'

Some time while updating Joomla one can get this error:

Unknown column 'client_id' in 'where clause 

There is a very simple fix for this, just run following URL in your browser:

yourwebsite.com/administrator/index.php?option=com_installer&task=database.fix