Hello Mohsen,
Glad to have you contact us here. I'll be happy to assist you with restoring your backup file so you can get back to doing what you enjoy the most. To get started, could you elaborate more about the roadblock you're facing when attempting to restore your backup file in QuickBooks?
For reference, here's a helpful article that shows you how to: Restore a backup your company files. Feel free to get back to me in the comments below. I look forward to hearing back from you.