Joomla Extension AS ArtSlider - Item Support

I recently purchased template 2055
Today i installed it and updated to the new joomla version.
I also lost my pictures i changed some settings but now i have a fatal error

Fatal error: Cannot redeclare class modArtSliderHelper in /home/pvtd154891/domains/xafety.com/public_html/joomla/modules/mod_as_artslider/helper.php on line 17


Could you help me out without entirely rebuilding my site?
Well i installed the fix, the website is back online but no pictures are shown in the slider
Hello MIJNHEERBOS,
We need an access to your Joomla admin panel, the info please put in the Special info under your Purchased items section of your AS account.

Regards, AS Team.
Item Name:
AS ArtSlider
Author:
Downloads:
32027
Created:
2013-01-31
Updated:
2014-09-25
Item Version:
1.1.0
$12.00
Regular License
This item may be used for a single domain only.
$29.00
Extended License

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