Loading/Editor problems

Alright, can someone help me out? I seem to have broken the game. I went into the Level editor about a week ago, the game worked fine and it loaded levels and cars just fine. and then I dragged a file into something within the editor and now everytime I attempted to load anything, it gives me the message "Failed to create resource : [content/levels/GridMap.zip]". Please help, I barely understand the editor portion of the game. I have attached an image of the message EDIT: Zoom in on picture to see it better, I apologize for it being oriented vertical.

 

Couldnt you have simply used the printscreen button and pasted into paint or the windows snipping tool (preinstalled on every windows version since vista). There is *never* any need to physically photograph the screen anymore.

 

I created this thread on my phone. But if need be, I'll do it on the computer.