You can be arrested at any time on a valid warrant
My response to your question is a generic response and should not be construed as controlling to your case. I can not effectively advise about your case without knowing all the facts. Additionally, my response does not create an attorney-client relationship. You can contact my office to schedule an appointment if you would like to have me represent you.
That you wait until 5 hours before your scheduled appearance to even inquire about it and think you can "call the sheriff later on" certainly explains why you have an outstanding warrant. Even a minimal amount of thought would have made it clear such a call should be made BEFORE your court date.
You state the warrant was issued for your "credit card settlement." That sounds as if it is a capias warrant for failing to pay the debt and then failing to appear at the payment review hearing. As such, it is a civil warrant.
While possible, it is unlikely you would be arrested on the capias warrant while appearing at a criminal hearing. You might discuss it with your attorney for the suspended license matter.
The foregoing is for general information purposes and does not establish an attorney-client relationship.