Key is incorrect

I have tried sevral times to enter the key and save. But I have seen the following message.

Key is incorrect. Please get Auto Update key at https://villatheme.com/my-download

I have read the page below.
https://villatheme.com/knowledge-base/how-to-use-auto-update-feature/

And I tried to click the button “Get Key” in Update tab in the plugin.
A small window opend and displayed as follows

error “invalid_request”
error_description “Wrong RedirectUri provided”

Please solve this problem.

ps
My site access is prohibited from outside Japan.
If the ip reject is the cause, please provide the whitelists.