Anyone help me installing template with teamviewer please?

i get error message:

Support Information:
CMS & Version: 1.5.5.4
Template & Version: 1.5.5.4
Website: team.mambagaming.com

MySQL-Query failed:

ErrorNo = 1060
Error = Duplicate column name 'slideshow'
Query = ALTER TABLE permissions ADD `slideshow` INT(1) NOT NULL default '0'

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I think you didn't installed the Features or something else. Use the install.php file in your browser and delete it after you used it.

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Like: www.your-domain.com/install.php or www.your-domain.com/install-fea.php if this file is on the server or in your template.

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