Hi, I am using Joomla 3.4.8 and when I try to install Sellacious I get the following errors:

Warning

JInstaller: :Install: Can't find XML setup file.

JInstaller: :Install: Can't find XML setup file.

Duplicate column name 'seller_email' SQL=-- -------------------------------------------------------- -- Modified table structure -- -------------------------------------------------------- ALTER TABLE `chromo_sellacious_order_items` ADD `seller_email` VARCHAR(100) NOT NULL AFTER `seller_name`, ADD `reviewed` INT(11) NOT NULL AFTER `sub_total`, ADD `reviewed_date` TIMESTAMP NOT NULL AFTER `reviewed`;

Package Install: There was an error installing an extension: com_sellacious.zip


Do you have any idea why is this happening?

Thank you in advance,
Daniela