Partitions on ubuntu drive not shown correctly best way to fix the disk

Question

A Ubuntu disk has corrupted partition table (I assume) what is the best why to handle this?
Here are some outputs from parted fdisk lsblk gparted
lsblk | grep sda
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 93.2G 0 part
└─sda4 8:4 0 829.1G 0 part

(parted) print
Model: ATA WDC WD10EFRX-68J (scsi)
Disk /dev/sda: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: loop
Disk Flags:

Number Start End Size File system Flags
1 0.00B 1000GB 1000GB ntfs

fdisk
Command (m for help): p
Disk /dev/sda: 931.53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: WDC WD10EFRX-68J
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: dos
Disk identifier: 0xe139b3fe

Device Boot Start End Sectors Size Id Type
/dev/sda1 2048 195352575 195350528 93.2G 83 Linux
/dev/sda4 214808576 1953519615 1738711040 829.1G 83 Linux

Command (m for help): v
Remaining 19461552 unallocated 512-byte sectors.

Command (m for help): F

Unpartitioned space /dev/sda: 9.29 GiB, 9964314624 bytes, 19461552 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes