Hi @ Yudistara,
Do you want to create a flow to copy the file in folder "Current" to folder "Archive" within the same library once a week?
If you would like to use the "Copy file" action if sharepoint connector to achieve your needs, you should fill in the file path in the "Source file path" field and "Destination file path" field of "Copy file" action instead of the folder path.
Please take a try use the "Create file"action to achieve your needs,and refer to screenshot below to create the flow to achieve your needs:


The expression in the "File Identifier" field of "Get file content" action as below:
items('Apply_to_each')?['{Identifier}']
The expression in the "File name" field of "Create file" action as below:
items('Apply_to_each')?['{FilenameWithExtension}']
The flow would run successfully to copy all files from folder "Current" to folder "Archive" as screenshot below:

Regards,
Alice Zhang