What do the red circles with white x mean?

[Poouster]

Here's a screenshot of a symbol that's showing up on all the listing of the folders and some files I make with Xara. Can someone tell me what they mean? I'm getting some kind of alert that I no longer have service for something - but I don't know what. I still seem to be able to use xara, although it keeps asking me to update, but all it does is remove it, then I have to find my serial number again and re-install it. I normally use a mac, but I have to use my pc for Xara, and to be honest, I'm usually lost. I'm also getting an email that says my "OneDrive" is full. I don't know what that is.

Any ideas?