Suddenly Back-Ups are failing with Error Code 1

I’ve been using CBU for several years.

I have two Profiles set to run of an evening and both have been running successfully for just over a year, but now all of a sudden they are failing every-night with Error Code 1 ( internal error ) :cry:

I have run the programs in built ‘Repair’ installation, deleted the Profiles and set-up two new ones and yet the problem still persists :frowning:

Can anyone help with a solution please ?