Error saving file -- issue with path?

I have been successfully saving files to a remote server, however I think I messed with the path and now I am unable to save.

For example, my path that I want to save is data/mqir/sam/supercontrols but now I am getting an error because when I use the following comand, /home/shuff/axivity gets added to the file name

save(fileToSave, 'regularizedData_full', '-v7.3') %peaks and active time
%Error using save
%Unable to write to file '/home/shuff/axivity/data/mqir-souza1/sam/supercontrols/P041_cropped/P041_cropped_active_pks.mat'
%because it appears to be corrupt.

[Geoff Hayes]

@Samantha Huff - the path may be fine...you should be able to confirm if it is valid or not. The problem might be with the size of data that you are trying to save. Is regularizedData_full large?