This is the technical support forum for WPML - the multilingual WordPress plugin.
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This thread is resolved. Here is a description of the problem and solution.
Problem: My website suddenly stopped working, notification was: Since WordPress 5.2 there is a built-in feature that detects when a plugin or theme causes a fatal error on your site, and notifies you with an automated email. Solution: There were two times uploaded same WPML plugin and that was causing that error.