Every time i try to update the info in the editor on the website and press a "save" button i get this error: 

Error: is currently unavailable.
DotNetNuke.Services.Exceptions.ModuleLoadException: Deleted 0 files, however, some files are locked. Could not delete the following files: C:\inetpub\vhosts\pastel-wizards.com\httpdocs\Portals\0\\Cache\Modules\101_ACABA51644A302FBB325E30E7931BAF8.attrib.resources;C:\inetpub\vhosts\pastel-wizards.com\httpdocs\Portals\0\\Cache\Modules\101_ACABA51644A302FBB325E30E7931BAF8.data.resources; ---> System.IO.IOException: Deleted 0 files, however, some files are locked. Could not delete the following files: C:\inetpub\vhosts\pastel-wizards.com\httpdocs\Portals\0\\Cache\Modules\101_ACABA51644A302FBB325E30E7931BAF8.attrib.resources;C:\inetpub\vhosts\pastel-wizards.com\httpdocs\Portals\0\\Cache\Modules\101_ACABA51644A302FBB325E30E7931BAF8.data.resources; at DotNetNuke.Services.ModuleCache.FileProvider.Remove(Int32 tabModuleId) at DotNetNuke.Entities.Modules.ModuleController.SynchronizeModule(Int32 moduleID) at DotNetNuke.Modules.Html.HtmlTextController.UpdateHtmlText(HtmlTextInfo objHtmlText, Int32 MaximumVersionHistory) at DotNetNuke.Modules.Html.EditHtml.cmdSave_Click(Object sender, EventArgs e) --- End of inner exception stack trace ---

Nevertheless the info is saved in the CMS and i can even preview it but the content on the website doesn't change.

Any solutions?

You were right,  thank you!

This one is running: DotNetNuke.Services.ModuleCache.PurgeModuleCache, DotNetNuke

Should i just be patient and wait till it's finished? It's been like 10 hours though already...