Hey Tom,

I am sorry for the delay of this reply,

When I click on the Read button in your reply I get
We are sorry, you need a valid subscription for EasyDiscuss
in order to view replies for this post in this category.

Do you mean when you click on read button from your email? Because I already checked this post thread is actually post in Easyblog section, by right you should not get this warning message.

I regenerated the token and get
The request token for this page is invalid. It may have already been used, or expired because it is too old. Please go back to the site or application that sent you here and try again; it was probably just a mistake.

Okay, try my following step and see how it goes?

#1. Open you Twitter apps > check my first screenshot below and make sure you have fill in all the field as I pointed to.
#2. Then Click `Keys and access token` tab > click 'Revoke Token Access' button > select your app name > click revoke button > after revoked, go back your app
#3. GO back "Keys and access token" tab > > then click "Regenerate Consumer Key and Secret"
#4. After that click "Create my access token"
#5. Copy your Consumer Key (API Key) && Consumer Secret (API Secret) from the apps then paste in your Easyblog Twitter autopost configuration page > save
#6. Click revoke access button then click `Sign in via Twitter` button again and see how it goes?

If this doesn't help, can you provide us with your Twitter access?