Error code MD-0005

Hello there, after few hours of downloading the Epic game launcher i started to download the Unreal Engine but it started showing error code MD-0005 and after few retries i committed to reinstall launcher but it still appears, let me know if there is anyway i can repair the software,
thanks
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Hello,

I’m sorry that you are having an issue with the Epic Games Launcher. In order for us to offer the best support, we have recently modified the process for how Epic Games can help troubleshoot your Launcher issue. Please visit http://help.epicgames.com/ for technical support, here you can find information and solutions for common issues, as well as a contact form if you still need additional assistance. To access the contact form, please use the “Email Us” button under the “Contact Us” section. Thanks!

Have a great day