https://www.rokucom-support.com/roku-error-code-005/

Many times, you may come across problems while using Roku if the Roku server status is down. So, make sure to check the Roku server status for Roku. If this is the problem then you need to wait for the error to be resolved from the backend. you can do-
If you are coming across Roku error 005 then the problem is related to the software update failure problem. It usually happens when there is a slow or interrupted network connection that can result in a software update issue.
The solutions mentioned in this blog will help you troubleshoot the error 005 in Roku. However, if the error is unresolved or you are facing any issue while trying these steps then make sure to contact the Roku support team.