Thanks for reaching out with your message. Can you please confirm where you are saving the Nucleus backups? Is it to a NAS drive? I enabled logging for your account and I noticed some errors related to permissions showing. What is the model/manufacturer of the NAS? Have you recently changed any settings there? Also it looks like you are getting a selected drive is full error, I am not sure if this is accurate, but please double check this aspect as well. Thanks!