Document not appearing in Trados

Hi there,

I recently bought a new laptop and have successfully transferred Trados Studio 2021 to the new one. Well... I thought I did everything well because I still can't translate documents. 

When you create a new project, you have to add a document in the first step. You can't go to the next step without adding a document to translate. 

I go through all the steps. All goes well. But when I go to Files to translate the document, there is no document to translate.

What do you think is wrong? What should I do? 

Thanks in advance!

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