AOMEI Backupper 4.0.3 log is as follows:

====================== System Information ======================
Module Path: C:\Program Files (x86)\AOMEI Backupper\ABService.exe
Product Name: Windows 7 Professional (6.1.7601.2)
Service Package: Service Pack 1
OS Version: 6.1
Total Memory: 12251 MB
Available Memory: 10986 MB
System Root: C:\Windows
Processor Architecture: AMD64
Processor Number: 4
Current Time: 2017-5-26 5:45:21
================================================================

[0       ]::GetFileAttributesA(sCurPath) != INVALID_FILE_ATTRIBUTES return code: 0x00000000, NetworkMgr.cpp(253).
[0       ]abservice.cpp(1007): Logon
[87      ]=== abservice.cpp(773): 2017-05-26 10:0:25 --- SetLastBackupDateTime Start 28fa0c8e-dd58-4095-a1f6-2f8e22d9b3ed ===
[87      ]=== abservice.cpp(791): 2017-05-26 10:0:25 --- SetLastBackupDateTime End 28fa0c8e-dd58-4095-a1f6-2f8e22d9b3ed ===
[18      ]abservice.cpp(425): Backup core not running.
[1813    ]abservice.cpp(428): Start backup core successed.
[997     ]abservice.cpp(478): Post task: 28fa0c8e-dd58-4095-a1f6-2f8e22d9b3ed
[87      ]=== abservice.cpp(773): 2017-05-27 10:0:30 --- SetLastBackupDateTime Start 28fa0c8e-dd58-4095-a1f6-2f8e22d9b3ed ===
[87      ]=== abservice.cpp(791): 2017-05-27 10:0:30 --- SetLastBackupDateTime End 28fa0c8e-dd58-4095-a1f6-2f8e22d9b3ed ===
[18      ]abservice.cpp(425): Backup core not running.
[1813    ]abservice.cpp(428): Start backup core successed.
[997     ]abservice.cpp(478): Post task: 28fa0c8e-dd58-4095-a1f6-2f8e22d9b3ed