Autodesk Inventor

[#1]

Buenas el error que tengo es este ¿cómo lo puedo solucioar?// Hello this is the error How can I solve this?

[#2]

Go to your Inventor options and look at the file tab..

Undo should read ... 

[#3]

I make a folder under my C drive called inventor undo and I map to that. This way if the error comes up again I can go to that folder and delete everything and restart inventor. All it is telling you is there is no more space for the undo files to go..