This Warning event is part of Automation Workshop Service events.
Event ID · 2261
This warning message is shown, if some Action or Trigger can not read a file or access a folder.
For example, File & folder watcher may issue this warning when it is listing a folder, and at the same time that folder is being removed from disk. This is expected behavior when monitoring directories that are constantly being updated.
If you have any questions, please do not hesitate to contact our support team.