An error occurred ... - Schedule a backup

Hi

When i schedule a backup i recieve a yellow banner “An error occured while setting the schedule. The schedule has not been set.”

i found the follwing entries in the CBU.exe.log

[30.06.2015 15:35:59:602|Th000014ec|LN001277|CManageScheduleBackupDlg::OnBnClickedBtnSave] bkpCreate.GetBackupSourcePath error 40
[30.06.2015 15:35:59:618|Th000014ec|LN013108|_CBU_SCHEDULER_AND_PROFILE_MANAGER::__internSetProfileInfoByBackupCreate] pBackupCreate->GetBackupType error 40
[30.06.2015 15:35:59:618|Th000014ec|LN014075|_CBU_SCHEDULER_AND_PROFILE_MANAGER::AddProfileBackup] this->__internSetProfileInfoByBackupCreate error 40
[30.06.2015 15:35:59:618|Th000014ec|LN001402|CManageScheduleBackupDlg::OnBnClickedBtnSave] scheduleManager.AddProfileBackup error 40
[30.06.2015 15:35:59:618|Th000014ec|LN001612|CManageScheduleBackupDlg::OnBnClickedBtnSave] Call failed with api status 40!.

Thanks

Beat