Problem recovering Volume Group

spython

On a reboot my VG and LVMs disappeared from the Physical Volume. The PV is there as an LVM2 but the VG and LVM's are not. I am aware this can be recreated using vgcfgrestore. The problem is that the LVM backup is on one of the LVMs which cannot be accessed because neither the VG or the LVM is showing in the PV. Unfortunately, I do not have an external backup of the lvm metadata (backup drive failed). Is there anyway to recover the VG? I am desperate and would appreciate any help.
Below is the info I retrieved from a livecd:

fdisk -l

Disk /dev/sda: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors
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: gpt
Disk identifier: 3DD3145E-BB16-4302-9B55-7D7A58E75779

Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
/dev/sda2 4096 1028095 1024000 500M EFI System

/dev/sda3 1028096 3907029134 3906001039 1.8T Linux LVM

parted
print

Number Start End Size File system Name Flags
1 1049kB 2097kB 1049kB bios_grub
2 2097kB 526MB 524MB fat32 EFI System boot, esp

3 526MB 2000GB 2000GB Linux LVM lvm

pvs
PV VG Fmt Attr PSize PFree
/dev/sda3 lvm2 --- <1.82t <1.82t