What can I do if I found out that I have a bench warrant but have no idea why?

I found out from a friend that I have an active bench warrant for failure to appear in court. There is no other information on the county warrant search site as to why I have 1. No case number, no fine amount, nothing. I don't even know when it was issued. I looked on our county court docket site and I have no open cases. There is a re-docketed case but the fine was already paid when they arrested my husband on a warrant for that case. I am so confused and would just like to know my options that don't include going to jail. I have no idea when I was even supposed to appear in court. I just want to take care of this but I have no idea where to start but I want to avoid going to jail.