What to do with cryptsetup?

Question

linux

Debian crashed, rebooted, displays cryptsetup: lvm is not available, encrypted the partition with swap, lvm did not find it, but when installing the system, it set up the partitions itself (is this the use of lvm and lvm?), After several identical messages, it displays the ancient BusyBox, where you cannot write even half of its commands, and there is no access to tty, as well as to all users. Now I'm sitting in livecd, I see my volumes i_i'