Question
How to verify integrity of the WordPress core files in Plesk?
Answer
You can verify the WordPress core checksums and reinstall the WordPress core by following these steps:
Go to Domains > example.com > WordPress tab > Open WP Toolkit.
Click Check WordPress Integrity.
Click Verify Checksums.
If there is a mismatch after the check, click Reinstall WordPress Core. This action will reinstall only the WordPress core files, all other WordPress data will be untouched.