Android crashed, now cant boot into it anymore!

[Onok]

Android was running amazing besides being a little slow at times. Once it crashed, all I get is a window asking to launch a script file and the window has default.txt as the default one. Usually android will just start up and not ask me to run a script file. When I hit run it says, Cannot open script file \StorageCard\andboot\default.txt. Do I have to reinstall Android or can I fix it? because I really edited a lot and added contacts and I would hate to lose everything, reformat the SD card, and install it again. Please if anyone has any knowledge of this, i would really appreciate the advice.