Fatal error: Call to undefined function wp_using_ext_object_cache()
Hello – I have done a manual upgrade of wordpress and am getting this error, for both the query.php and option.php pages.
If I replace all the files/folders in the wp-includes directory, with clean versions from the install, then my site appears as normal. But after a few minutes or sometimes several, the error comes up again.
Any ideas on what might be the issue(s)? Let me know if there’s anything I can do to correct the problem.
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