Backup plan lost Most likely you changed your company name recently under settings > general and only now updated the software on your machines, resulting in changing on the configuration folder.
The old plans should be in the old settings folder(C:\Programdata\%your companyname%), simply copying the .cbb files to C:\Programdata\Online Backup should resolve the problem.
You can send us the diagnostic logs from the software for further investigation via tools > diagnostic menu.