Hello,
Can you test the XSL map "remover_namespace_totalupload" locally using the source payload XML?
If you do not have Oxygen, Eclipse, etc. you can do it online - for example
Free Online XSL Transformer (XSLT) - FreeFormatter.com
An application like Oxygen would help because you also have a debugging mode and it is easier to find transmformation problems.
Best regards,
Peter