Manual partitioning causes error

I tried to install Linux by console, starting with partitioning and so on.
I do the same steps again and again, but when the installer (Live-System) starts, it’s crashing.
I don’t know why, everything seems to be right.
Doing the settings by the graphical installer leads to a crash right after setting the lvm.

    sudo parted /dev/vda
    (parted) mktable gpt
    (parted) mkpart ESP fat32 1MiB 501MiB
    (parted) set 1 boot on
    (parted) set 1 esp on
    (parted) mkpart primary ext4 501MiB 1001MiB
    (parted) mkpart primary 1001MiB 100%


    sudo cryptsetup luksFormat /dev/vda3
    sudo cryptsetup open /dev/vda3 cryptlvm


    sudo pvcreate /dev/mapper/cryptlvm
    sudo vgcreate ubunut-vg /dev/mapper/cryptlvm
    sudo lvcreate -L 20G -n root ubuntu-vg
    sudo lvcreate -L 100G -n home ubunut-vg
    sudo lvcreate -l 100%FREE -n swap ubunut-vg


    sudo mkswap /dev/ubuntu-vg/swap
    sudo mkfs.btrfs /dev/ubuntu-vg/root
    sudo mkfs.btrfs /dev/ubuntu-vg/home

    sudo mkfs.vfat -F 32 /dev/vda1
    sudo mkfs.ext4 /dev/vda2


    sudo mkdir /mnt/home
    sudo mount /dev/ubuntu-vg/home /mnt/home
    sudo mount /dev/ubuntu-vg/root /mnt
    sudo swapon /dev/ubunut-vg/swap

    sudo mkdir /mnt/boot
    sudo mount /dev/vda2 /mnt/boot

    sudo mkdir /mnt/boot/efi
    sudo mount /dev/vda1 /mnt/boot/efi

Please can someone tell me whats wrong with this config 🙁