When enrolling a client for DrChrono payments (aka PaySimple) - you will first need to add the option under the feature rollout tool (FRT).
Once it is turned on, you/they will see this error message until the client completes the enrollment and has their merchant account attached to their DrChrono account.
This is intended behavior and just signifies that there is no merchant account attached yet. It will go away once their enrollment is complete with PaySimple/DrChrono payments.
