Suddenly all my folders in outlook disappeared. I had many folders and subfolders on my computer. Now these have disappeared. 

When I try to replace a message to a folder I get a list of all my old folders to choose from. When I pick one of the old folders in this list, the message actually goes there. But than I cannot access it anymore because I cannot find these folders anywhere in outlook. They still should be on my Mac though..

Does anybody know where is can find them and how I get all my folders back?