backup GPT table is corrupt. Running fdisk

I went to check my disk with fdisk -l and came up with one that says the The backup GPT table is corrupt, but the primary appears OK, so that will be used.

I'm not sure which disk it is referring to but I suspect it may be my bootable USB which is 16GB.

What should I do about this?

here is the terminal output.

We trust you have received the usual lecture from the local SystemAdministrator. It usually boils down to these three things:    #1) Respect the privacy of others.    #2) Think before you type.    #3) With great power comes great responsibility.[sudo] password for amnesia: Disk /dev/sda: 298.1 GiB, 320072933376 bytes, 625142448 sectorsUnits: sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisklabel type: dosDisk identifier:Device     Boot  Start       End   Sectors   Size Id Type/dev/sda1  *      2048    206847    204800   100M  7 HPFS/NTFS/exFAT/dev/sda2       206848 522741759 522534912 249.2G  7 HPFS/NTFS/exFATThe backup GPT table is corrupt, but the primary appears OK, so that will be used.Disk /dev/sdb: 14.9 GiB, 16008609792 bytes, 31266816 sectorsUnits: sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisklabel type: gptDisk identifier: Device        Start      End  Sectors  Size Type/dev/sdb1      2048 16779263 16777216    8G EFI System/dev/sdb2  16783360 31266782 14483423  6.9G Linux filesystemDisk /dev/loop0: 1.1 GiB, 1181437952 bytes, 2307496 sectorsUnits: sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk /dev/loop1: 75.7 MiB, 79384576 bytes, 155048 sectorsUnits: sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk /dev/mapper/TailsData_unlocked: 6.9 GiB, 7413415424 bytes, 14479327 sectorsUnits: sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisk /dev/sdc: 1.8 TiB, 2000365289472 bytes, 3906963456 sectorsUnits: sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytesDisklabel type: gptDisk identifier: Device          Start        End    Sectors   Size Type/dev/sdc1        2048 1536002047 1536000000 732.4G Microsoft basic data/dev/sdc2  1536002048 3072002047 1536000000 732.4G Apple HFS/HFS+/dev/sdc3  3072002048 3906758655  834756608   398G Linux filesystemamnesia@amnesia:~$```