Let me know what information you would like, I have provided debug info for the cloned dev site, but let me know if you would like access to the cloned dev site.
Are you still facing the issue if only WPML plugins enabled?
Could you please update your WPML plugin to the latest version 4.6.5, and add-ons to benefit from the latest bug fixes and improvements? This may not necessarily resolve your problem, however, in order to troubleshoot the issue best, we need to work on the latest code available.
You can check the latest released versions under "My Account -> Downloads" on this site. Instructions to update can be found here: http://wpml.org/faq/install-wpml/
Please remember to back up your database first before you proceed.
Let me know if the issue persists after an update has been done.