Hello,
I have moved your post to a new thread as it is unrelated to the thread you posted it in.
This sounds like a capabilities issue and is not related to the coin adapter. Can you go to Wallets → Capabilities and check that the roles that your users have are granted the has_wallets capability? Additionally, some UIs need special capabilities so make sure to enable all the wallets capabilities to your user role or roles (Subscriber, Member, etc). Just make sure to keep the manage_wallets capability only for admins. The capabilities are also explained in detail in the documentation file.
kind regards