The path does not point to a regular file error

Im getting the following errors in Orthnac log file while transferring studies from a modailty:

E0913 15:33:28.985465 SystemToolbox.cpp:172] The path does not point to a regular file: D:\PACSIMAGEDATA\b3\5f\b35f8310-4c5e-47a1-9256-f596157b1867

W0913 15:33:28.985465 ArchiveJob.cpp:416] An instance was removed after the job was issued: bddb6f0a-e53d65a9-f15def78-8a536c33-5f40d7f4

E0913 15:33:28.985465 SystemToolbox.cpp:172] The path does not point to a regular file: D:\PACSIMAGEDATA\b8\a8\b8a886a3-f267-416e-9921-36e369724bb6

W0913 15:33:28.985465 ArchiveJob.cpp:416] An instance was removed after the job was issued: c4f93b27-348797e6-131fb9d1-c902c20e-ece188fb

E0913 15:33:28.985465 SystemToolbox.cpp:172] The path does not point to a regular file: D:\PACSIMAGEDATA\96\f9\96f9a5fe-dca5-4849-b403-3b986e80a54d

W0913 15:33:28.985465 ArchiveJob.cpp:416] An instance was removed after the job was issued: 3103e649-81ee9b74-ac2978d7-4bd82146-b016447b

E0913 15:33:28.985465 SystemToolbox.cpp:172] The path does not point to a regular file: D:\PACSIMAGEDATA\7e\29\7e29e308-1f1b-4cae-8d7d-d9b9a856a3b9

W0913 15:33:28.985465 ArchiveJob.cpp:416] An instance was removed after the job was issued: 3827f807-9e7efdd6-8a2eba31-7a8b1852-f1202e21

E0913 15:33:45.353401 SystemToolbox.cpp:172] The path does not point to a regular file: D:\PACSIMAGEDATA\5e\1b\5e1b5e67-57dd-4ca1-8f5e-0b25d3baed6c

W0913 15:33:45.353401 ArchiveJob.cpp:416] An instance was removed after the job was issued: 9e085674-ccc80624-4f8a61a7-75571872-324cd836

Any idea what this means ?

Anyone ?

Please provide more context.

S├ębastien-