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This thread is resolved. Here is a description of the problem and solution.
Problem: Wordpress displays "The site is experiencing technical difficulties". when wpml is active
Solution: Inspect WordPress or the server error logs, In this case the issue is due to an incomplete WPML download, Following the manual installation steps resolves the issue https://wpml.org/forums/topic/the-site-is-experiencing-technical-difficulties-9/#post-4737961