Yes I found that way too but I guess I have a problem or a bug as I don't have enough space on my Save "partition" (655mb remaining) and whenever I put something in it and delete it I don't get the used space back. weird.
If someone knows what could be the solution or a workaround...
Thanks guys !
Nevertheless, do anybody have the same issue I have :
I can create the first cache, but not the 1 and 2 as I'm told that "Save data creation failed", just like I'm just able to create only one...