What did I mess up?

I had the game running ok, but couldn’t get it to save. I reinstalled the program, emptying my trash and everything else. Now, I can’t get the program to run at all. I get a variety of errors. First, it told me it stopped running. I tried installing the patch to see if that was the problem. Now, when it loads it tells me “Write error in the file Pokemon Insurgence 1.2.3…probably the disk is too full.”
I am not sure what to try next. Do I delete the patch file because that seems to be the cause of the new error? Or is there something else?
I’m not great with tech speak. (actually, my gf is writing this for me so I don’t get mixed up) Please keep it as plain and simple to follow as possible.

Much Aloha.
Kiha and Brandy