The most common reasons for those kinds of problems:
- ran out of disk space
- do not have write access to destination
- spaces or non-ASCII characters exist in a directory name or file name
Some parts of MATLAB deal well with spaces or characters such as é but other parts do not. Historically certainly it would have been a problem for some parts of MATLAB that your Windows directory "PC Casa" has a space in it.
The actual problem in your case might be different than the above, but there have been so many parts of MATLAB (especially when third-party tools are invoked) that do not deal well with spaces, that I would recommend getting rid of the space in "PC Casa" if you can.
