Opencart admin section not working

[system]

Hello Friend can u plz help me I have website in opencart but its admin section is not working plz help me in this its giving error like this

Fatal error: Cannot redeclare ModelCatalogProduct::enableProduct() in /home/dubaigamers/public_html/vqmod/vqcache/vq2-admin_model_catalog_product.php on line 28

[Topcoder]

That means someplace in your code execution path ModelCatalogProduct::enableProduct() was previous declared.

You can’t declare it twice, I doubt this is a bug in opencart, but more of how you configured it…

I would suggest asking the good people over at opencart for help with this one…

http://forum.opencart.com/