Template does not load

Please help, when I click to select a template and continue, the template does not load. Not load any template, the viewing area stays white, and then not let me preview or load another template. I have installed wordpress 3.6.1 and I have tried it on different browsers.

Thanks

http://ww.wp.xz.cn/plugins/envialosimple-email-marketing-y-newsletters-gratis/