Project location error - Please help

 Hi everybody! I hope you're able to help.

When I'm starting a new project,  I fill in all the field and also the project location. This was never a problem. Please view screenshot of the settings.

 

This way a new folder is made for every new project. However, when I click next, I now get the following error message:

This path was used a long time ago, but somehow Trados now want to make a new project there every time. If I click OK..the project is made in the path you see in the error message. I cannot find anyplace, where this location is set , or why it gives the error... does anyone have any experience in dealing with this?

I use Studio 2014