What's wrong with software RAID0 (Ubuntu)?

Question

linux

Just noticed now. Everything works without errors. BUT:
sudo fdisk --list
...
The main GPT table is corrupted, but the backup seems to be fine, so it will be used.
Disk /dev/sdc: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors
Units: 1 * 512 sectors = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk Label Type: gpt Disk
ID: 4ECA28E1-045D-43F8-AD77-B48C0AAB9BC5
The primary GPT table is corrupted, but the backup appears to be fine, so it will be used.
Disk /dev/sdd: 1.8 TiB, 2000398934016 bytes, 3907029168 sectors
Units: sectors 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk label type: gpt Disk
ID: 76C19E81-8639- 451F-9168-4FDACE7593DA
Disk /dev/md0: 3.7 TiB, 4000527155200 bytes, 7813529600 sectors
Units: 1 * 512 sectors = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum) /optimal): 524288 bytes / 1048576 bytes
......
When assembling, I made a new GPT table on the disks, no errors were thrown.
What will the doctors say?
Thank you.

Answer 1

Doctors will say "kill".
Once again, something got crooked, but if it works, then it's okay.