Having the same issue but with a different Gmod addon... Very unusual.

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###### 2025-09-12 00:32:42 Crowbar 0.74

=== Steps to reproduce the error ===
Input a Garry's Mod Workshop link into the download tab and hit "Download"

=== What you expected to see ===
The download process to complete and the downloaded file to be in my downloads folder, where I set Crowbar to output to.

=== Context info ===
The addon i was attempting to download was this one:
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2609173709
I wanted to have it hard installed locally instead of as an addon that could get removed or stop working.

=== Exception error description ===
Could not complete operation on some files and directories. See the Data property of the exception for more details.

=== Call stack ===
at Microsoft.VisualBasic.FileIO.FileSystem.FxCopyOrMoveDirectory(CopyOrMove operation, String sourceDirectoryPath, String targetDirectoryPath, Boolean overwrite)
at Microsoft.VisualBasic.FileIO.FileSystem.CopyOrMoveDirectory(CopyOrMove operation, String sourceDirectoryName, String destinationDirectoryName, Boolean overwrite, UIOptionInternal showUI, UICancelOption onUserCancel)
at Microsoft.VisualBasic.MyServices.FileSystemProxy.MoveDirectory(String sourceDirectoryName, String destinationDirectoryName)
at Crowbar.DownloadUserControl.DownloadItem_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e)
at Crowbar.BackgroundWorkerEx.BWE_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e)
at System.ComponentModel.BackgroundWorker.OnRunWorkerCompleted(RunWorkerCompletedEventArgs e)
at System.ComponentModel.BackgroundWorker.AsyncOperationCompleted(Object arg)