Invalid partition table after 17 core install

Files when I go to other locations just shows Computer 219.4 Gb / 244.5 Gb available.

lsblk -f shows:
vfat FAT32 504.9 available 1% /boot/efi
ext4 1.0 204.3 available 5% /

I also ran fdisk -l - Here's what I got:

/dev/sda1 512 type EFI system
/dev/sda2 232.46 type Linux filesystem

I have to go out for an appointment today. I will check this when I get back. Again I really appreciate everyone's help.