I Updated to 6.3 And I'm Having a Lot of Problems Please Help!!

Hello so I just updated to 6.3 from 5.4, Now it's telling me some of my games can't be decrypted and to make sure the disc key is in the key.txt folder, but when I check those folders it's all there. Another thing that keeps happening is all of the sudden it's telling me some of my emulators aren't even installed but I know they are. I'm really not the best with computers so I'm not really sure where to go from here, my dad bought me an external hard drive for my birthday with retro bat and a lot of roms and emulators already on it kind of like a plug and play sort of thing, meaning I didn't install any of this stuff I've done some emulation in the past but like I said before I'm just really unsure where to go from here any help or suggestions would be super helpful thank you for your time.

Hello
Retrobat team works for free. So ask the seller to work a bit.

Im not sure where my dad got the hard drive from, I'll have to ask him.

Problem with those "ready" bought HDDs is that once you start fiddling around it might break everything because it's not done well to begin with, just thrown together and sold for expensive money.

Everything was apparently working thus you should not have tried to update.