Have u ever been Sanction on cash assistance?

Hi

I got a letter saying my cash assistance will be removed as on 7/02/2020. I’m only getting unemployment because my unemployment money is almost about $4,500 a month. But that is because that was money owed to me. So I needed that money to catch up on bills. What is a cash assistance sanction? And how can I get this taken care of? I think this was a misunderstandment. My case worker was helping me receive child support but she said I can’t recieve childsupport and cash assistance at the same time. I think my case worker messed me up.