The messages could not be filtered to folder '%S' because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again.
Nid oedd modd i'r negeseuon gael eu hidlo i ffolder '%S' oherwydd i ysgrifennu i ffolder fethu. Gwiriwch fod gennych ddigon o le ar eich disg, a bod gennych hawl ysgrifennu i'r system ffeil, yna ceisiwch eto.