If you need to work on your WordPress website without any users being logged in, you can force all user accounts to be logged out in a few, simple steps.
Log into your cPanel account.
Go to Files > cPanel File Manager to view the files and folders stored on your server.
Navigate to your WordPress folder, then select wp-config.php. Click Edit to open the file.
Scroll down until you see a code block that lists your authentication keys and salts:
*/
define('AUTH_KEY', 'jzw0zirxzxiym5h7967slsq3iqhwuaws6eiv5vv9qcjs9boztbos5jzbz7oj0h5v');
define('SECURE_AUTH_KEY', 'sl1ahrdlvc7ul9vjxqtnjpoyobggyupz0j0vprvghvah7ypn84njtti2snvfavgt');
define('LOGGED_IN_KEY', 'k3m9vh4yymi50q4u7i3ozppdreg9dgntyoerirsfrzuzr0coafqrfos0gmffmugy');
define('NONCE_KEY', 'ex2wvqq9kwfaifkvvtsxvsmu7cvd1kz9hpnr7jmb15zslja7hdp4tu78b6czypzz');
define('AUTH_SALT', 'y5meoiz3pu9z9pwteqoef5y7pqwh8mojymrzomutgo83e8gmswqd68ep2obeyu1l');
define('SECURE_AUTH_SALT', 'sahsg1uaaeuqic3v1tyldtvbq2uphga7xwqybfvszzes2lstqke3ak6odftsdul8');
define('LOGGED_IN_SALT', 'sdh5xnsd6npytsyccmua6tzszaldyvyouqllh5omdcebgoiwfj2cee93vroscztl');
define('NONCE_SALT', 'wgvxok4htjab32ntnynbp2rrrbfreqzwdqhf1whcmmfaecphdj2u1v2m5ex1vdfl');
/**#@-*/
These are the user authentication keys used to secure your site. When replaced, WordPress will immediately log out all user accounts. To do so visit the WordPress Salts Generator site.A new set of randomised keys are created each time you visit the site. Delete the keys in config.php, then copy and paste the new keys into the file.
Save the file and all of your users will be logged out.
