How to get the plugin works

Sorry if the question seems dumb. My problem is that after I have set up the “unlock with Patreon” button, I have tried to test it with another browser and with another patreon acct. But after I pledged with my own project and then click the “Unlock” button, and clicked through the “Log in with patreon confirmation page”, I was redirected to the homepage. Then, I try to go to the post again, the lock is still there.

What else I have to do to make this plugin works?

Have you created a client at Patreon and then entered the client credentials into the plugin settings?

Yes, I have done that as the instruction stated.