Magento

Need someone with experience in Magento that can work on shopping cart/check our issues. Must have experience with shopping carts and be able to work in a timely matter. Shopping cart is giving an error causing customers to be charged multiple Upgrade to see actual info addition now Magento is giving us this error:
Cannot read contents from file "public_html/cart/app/code/TB/FixDuplicateOrder/etc/module.xml" Warning!file_get_contents(public_html/cart/app/code/TB/FixDuplicateOrder/etc/module.xml): failed to open stream: No such file or directory
We need assistance ASAP with someone that will be able to keep daily communication and update.