This message is to be expected. The new plugin has different screens from the old one.
1. Where did you find the links you mentioned? These links should work.
2. What do you see when you navigate to
/wp-admin/admin.php?page=wallets_docs ? You should be able to see the documentation for all the installed extensions.
3. Are you able to email me login details, so I can inspect the issue myself on your system?