Stuck in a loop of freeing up space and filling it up again when rebuilding

$ docker ps
CONTAINER ID        IMAGE                           COMMAND             CREATED             STATUS              PORTS                                      NAMES
1fba0860cbc3        local_discourse/web_only        "/sbin/boot"        5 months ago        Up 29 minutes       0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp   web_only
aa6b422d88ca        local_discourse/data            "/sbin/boot"        8 months ago        Up 29 minutes                                                  data
2940a1603151        local_discourse/mail-receiver   "/sbin/boot"        8 months ago        Up 29 minutes       0.0.0.0:25->25/tcp                         mail-receiver

What do you mean by that? Will I need a discourse backup? Cause I don’t have one…