Thanks Reddy, but I don't delete all the content of .businessobjects because it has all my information about my universes. I found in the path: C:\Users\<current log in id >\..businessobjects\preferences\mrulist has 2 file:
- openeddocuments.persistent
- useddatasources.persistent
They have all the information about the data sources and documents of WEB Rich client. I deleted them. Open again my WEB rich client and it has not data sources and documents.