My hard drive is being recognized so why isn't it opening any of my games?

I have my hard drive plugged into my Xbox and it is being recognized just got new cords for it, and it won't open or play any of my games. It's says there was an error opening the app, might need to finish installing and stuff like that but we have had this game for awhile it's been downloaded to the Xbox, and it's up to date on updates. What confuses most of all is that we play these games on a daily basis and it was working for us then we went to sleep won't up the next morning and now it's like this. What do I do, how do I fix it.

:)