It can be frustrating when a WordPress fatal error(WordPress fatal error cannot login) keeps you from signing in, but there are things you can do to fix the problem:

Check WordPress fatal error cannot login Message:

Find the specific error message by examining. It might reveal information about the root of the problem. Frequently, this data can be seen on the screen or in the PHP error logs.

Accessing Error Logs:

For complete information about the error, review the error logs on your server. Usually, the hosting control panel or the file system of the server include these logs.

Deactivate Plugins:

Plugins can be deactivated by utilizing FTP or a file manager that is supplied by your hosting company to access your WordPress files.

  • Go to the wp-content directory by navigating.
  • Go to the wp-content/uploads directory.
  • Rename the plugins folder (for example, plugins_backup).

This disables all plugins. Try again to access the WordPress login page. If you are successful, reactivate each plugin one by one to find the broken one.

Change to a Default Theme:

Similarly, you can access your WordPress files via FTP or a file manager.

  • Navigate to the directory wp-content/themes.
  • Rename the folder containing your active theme to anything else.

WordPress will use the default theme by default. Check to see if you can log in.

Increase Memory Limit:

If the fatal error is memory-related, consider increasing the memory limit by editing the wp-config.php file or contacting your hosting provider.

define( 'WP_MEMORY_LIMIT', '256M' );
define( 'WP_MAX_MEMORY_LIMIT', '512M' );

You can add it before the line
/*That's all, stop editing! Happy Blogging. */

WordPress Beginner: WordPress fatal error cannot login

Reinstall WordPress Core Files:

Get a fresh copy of WordPress from the official website.
Replace your WordPress installation’s wp-admin and wp-includes directories with the new ones.

Check .htaccess File:

Ensure that .htaccess file in the WordPress root directory is not corrupted. You can rename it briefly to see if it addresses the problem.

Password Reset:

If you suspect a password problem, click the “Lost your password?” option on the login page to reset your password.

Use the WordPress Database Repair tool to repair your database. In your wp-config.php file, add the following line:

define(true, 'WP_ALLOW_REPAIR');
Visit for further information. and then follow the directions.

Please contact Hosting Support:

If the WordPress fatal error cannot login problem persists, contact the support team at your hosting provider. They may be able to provide more assistance and look into server logs for any problems.

WordPress Beginner: WordPress fatal error cannot login

Before making any big changes to files or setups, always backup your website. If you are unsure about any step, it is best to seek professional advice.

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