Annoying Glitch

Every Time i LogIn to the Dashboard a notification at the top of the screens notifies me that my token key is wrong.

Then i go to the plugin page and i hit save without changing anything and it completes with success. Then if i Visit the backend again after a day or two, the same notifications comes up.

It is not fatal, but it is annoying. Also i have paid for the pro version but still it has the same problem. Maybe it has something to do with my key, could that be fixed by changing my access key or anything without losing my subscription?

Thanks

https://ww.wp.xz.cn/plugins/cleantalk-spam-protect/