I have been installing this on two websites, and have noticed the same error in each of them. The error is:
0033.229 (0) ERROR: Zip failure: Could not create uploads zip: code=-2
What does that error code refer to? There is no caching on these websites, so I have ruled out that, plus I believe that would create a "code=-1" error.
Let me know if you would like the entire log file, and thanks for your help!