When I logged into my Trello account, It deleted my board! How do I get it back?

[Avonlea Feng]

When I tried to log into my trello account at school, it hit me with the disabled 2-step verification. I wasn't able to get in, so it was counted as missing until further notice. I tried to log in again today, and realized my premium free trial ended. I didn't think much of it, but when I tried looking for my board with everything I need for a major grade assignment, it was gone. I kept looking for it, but couldn't find it anywhere. I tried searching it up, looking in closed boards, but there was nothing. My board was titled TPSP, and it had a bunch of notefacts I researched, but it was gone. It seemed as if when my premium trial ended, so did my major grade board.