Token expiration wont reset

I was just able to renew my token. Facebook only lets you renew your token once per day. Try waiting 24 hours from your last attempt and try again. If you still run into trouble, you may want to consider creating a new Facebook App for the plugin.

I created a new FB app, pasted in the app id & secret, but it still wont save. Any other suggestions?

Can you go to https://takanudo.com/jsl3-facebook-wall-feed/ and post a comment? I might need to work with you over email to resolve this issue.