Running application in Android: the file mainData is corrupted

Recently I posted a question about a grave misbehaviour of my application in Android, while it worked perfectly in PC. Basically the problem there seems to be is that the app breaks in the startup, for example, at the point when loading the data used in the application.

I finally figured out how to debug in Android so I got a log file of what's going on. Reading the log I really don't why this is all happening. This message is repeated all over the log:

E/Unity (14037): The file '/mnt/asec/es.uca.gii.dsh.traducinante-1/base.apk/assets/bin/Data/mainData' is corrupted! Remove it and launch unity again! E/Unity (14037): [Position out of bounds!]

E/Unity (14037): GLSL compilation failed, no infolog provided

And then related to items.json, where the data the app uses is stored:

I/Unity (14037): IsolatedStorageException: Could not find a part of the path "/mnt/asec/es.uca.gii.dsh.traducinante-1/base.apk/Resources/items.json".

I attached the log in case you need to know more, also here in pastebin (http://pastebin.com/vN9ruEs5). And here is the items.json in case the contents have anything to do with the issue: http://pastebin.com/Wmg2CGKX

What's going on? How can I fix this huge issue?