How do I repair a Fat 32 Filesystem Partition "input/output error"

Some how the partition (Dev/sda2) partition got deleted. So I use TestDisk to bring it back... The first time I did it it erase the whole hard drive... The second time it did restore the partition which is good. But now it is giving me a error massage when I try to open it in Files(Gnome).

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IF you need it in text here: Error when getting information for file '/media/ubuntu-gnome/Backup/User': Input/output error


Try running

sudo dosfsck -r

a few times and see if that fixes things. Good luck.