theme shuts down when clicking on widgets (iMac and iPhone)

Please, have a look at the website http://federation-geido-tao-chi-kihon.com
When clicking for instance on the tab widget on the right side the picture turns grey. How do I send you a screenshot?

I have checked your site, this issue come from a plugin in your site. Firstly, please deactivate all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one and let us know if you find the problematic plugin(s). Maybe there is a conflict in plugins.

I found the conflicting plugin. I display my photos with the Shashin gallery. On the same time I had the Light- Rsponsive Lightbox plugin running. I deactivated the last one and it’s working perfectly fine now! Thanks for the support. I really like the theme!