PROPFIND request failed

Hi All, I'm working with Code Reviewer tool for Collaborator, I'm trying to connect codereviewer with SVN Subversion, but is throwing the following error: svn: PROPFIND request failed on '/viewvc' svn: PROPFIND of '/viewvc': 200 OK (https://server) do you have any idea about this issue? I really appreciate your help and time, thank you.