BACK UP ERRORS in UR

Received a warning email today from URBackup about recent backup.

WARNING: Restarting shadow copy of E:\ because it was started by this server
ERROR: Error opening file “\?\D:\URBACKUP\urbackup_tmp_files\620407” from pipe for reading file. File: temp_fn ec=2
ERROR: Error opening file “\?\D:\URBACKUP\urbackup_tmp_files\620408” from pipe for reading file. File: temp_fn ec=2
WARNING: Metadata file and “D:\URBACKUP\JAZZ\170318-0919\Users\PD\MODENAD\AdwCleaner\Quarantine\C\Users\MODENAD\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Search.lnk.vir” do not exist. Skipping applying metdata for this file.
WARNING: Metadata file and “D:\URBACKUP\JAZZ\170318-0919\Users\PD\MODENAD\AdwCleaner\Quarantine\C\Users\MODENAD\Desktop\Search.lnk.vir” do not exist. Skipping applying metdata for this file.
WARNING: Not all folder metadata could be applied. Metadata was inconsistent.
ERROR: FATAL: Backup failed because of disk problems (see previous messages)

Looks like it is trying to backup files that were possibly deleted but am not sure. Any input is welcome.