Error message:Time Machine couldn’t complete the backup
I am getting this Error message:Time Machine couldn’t complete the backup to “SC'S Time Capsule”. The backup disk image “/Volumes/Data-1/SIMON CLARK’s MacBook.sparsebundle” is already in use. The backup disk image “/Volumes/Data-1/my MacBook.sparsebundle” is already in use
I have no idea how to fix it. Anny suggestions. Thanks SC
TIME MACHINE/CAPSULER-OTHER, OS X Mountain Lion (10.8)