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Posted a reply to Updating failed. Error message: The response is not a valid JSON response., on the site WordPress.org Forums:
Ok, it happened to be some issue with php 7.3, Jetpack, SSL things, htaccess file.… -
Posted a reply to Updating failed. Error message: The response is not a valid JSON response., on the site WordPress.org Forums:
Helped a bit, but can't find it satisfying. I mean, I've created now totally new…