[galaxy-dev] JBrowse failed to install

Hello, I tried JBrowse from toolshed and testtoolshed to install, but in both cases it fails, because of xz ( *testtoolshed.g2.bx.psu.edu/repos/iuc/package_xz_5_0_5/50c34f0ab0e4/package_xz_5_0_5 <http://testtoolshed.g2.bx.psu.edu/repos/iuc/package_xz_5_0_5/50c34f0ab0e4/package_xz_5_0_5>* ): *Error downloading from URL* *http://tukaani.org/xz/xz-5.0.5.tar.bz2 <http://tukaani.org/xz/xz-5.0.5.tar.bz2>:* *HTTP Error 403: Forbidden* How is it possible to fix it? Thank you in advance. Mic