Cant find reason for this error and yes i have alot of free space!

Any idea?

Exception Details: System.IO.IOException: There is not enough space on the disk.

Upgrading DotNetNuke

Current Assembly Version: 06.01.04

Current Database Version: 06.01.02

Upgrade Status Report

00:00:00.046 - Upgrading to Version: 06.01.04
00:00:00.171 -   Executing Script: 06.01.03.SqlDataProvider Success
00:00:00.843 -   Executing Script: 06.01.04.SqlDataProvider Success
00:00:01.891 -   Executing Application Upgrades: 06.01.03 Success
00:00:03.344 -   Executing Application Upgrades: 06.01.04 Success
00:00:04.438 -   Cleaning Up Files: 06.01.03 Success
00:00:04.454 -   Cleaning Up Files: 06.01.04 Success
00:00:04.454 -   Updating Config Files: 06.01.03 Success
00:00:04.516 -   Updating Config Files: 06.01.04 Success
00:00:04.516 - Performing General Upgrades
00:00:04.797 - Installing Optional Modules:
00:00:04.829 -   Installing Package File DDRMenu_02.00.01_Install:  Success
00:00:10.017 -   Installing Package File DNNCE_HTML_06.01.04_Install:  Success
00:00:11.611 -   Installing Package File DNNCE_Messaging_06.01.04_Install:  Success
00:00:12.174 -   Installing Package File DNNCE_Taxonomy_06.01.04_Install:  Success
00:00:13.002 -   Installing Package File Telerik_06.01.03_Install:

Server Error in '/tr' Application.

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There is not enough space on the disk.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.IO.IOException: There is not enough space on the disk. 

Stack Trace:

[IOException: There is not enough space on the disk. ] System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) +9723538 System.IO.FileStream.WriteCore(Byte[] buffer, Int32 offset, Int32 count) +9561002 System.IO.FileStream.Write(Byte[] array, Int32 offset, Int32 count) +287 DotNetNuke.Services.Installer.Util.StreamToStream(Stream sourceStream, Stream destStream) +65 DotNetNuke.Services.Installer.Util.WriteStream(Stream sourceStream, String destFileName) +114 DotNetNuke.Services.Installer.InstallFile.ReadZip(ZipInputStream unzip, ZipEntry entry) +40 DotNetNuke.Services.Installer.InstallerInfo.ReadZipStream(Stream inputStream, Boolean isEmbeddedZip) +145 DotNetNuke.Services.Installer.InstallerInfo..ctor(Stream inputStream, String sitePath) +211 DotNetNuke.Services.Installer.Installer..ctor(Stream inputStream, String physicalSitePath, Boolean loadManifest, Boolean deleteTemp) +61 DotNetNuke.Services.Upgrade.Upgrade.InstallPackage(String file, String packageType, Boolean writeFeedback) +252 DotNetNuke.Services.Upgrade.Upgrade.InstallPackages(String packageType, Boolean writeFeedback) +233 DotNetNuke.Services.Install.Install.UpgradeApplication() +922 DotNetNuke.Services.Install.Install.OnLoad(EventArgs e) +375 System.Web.UI.Control.LoadRecursive() +74 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207