As we have already learned the most common problems now in this post I’m going to finish this series for now.

  1. 503 Service Unavailable
    Service may not be available because the server cannot handle the request. It may be due to excessive traffic, faulty PHP codes in plugins or themes. The solution is simple, find out the theme/plugin and update it to the latest version or contact the developer team.

  2. 504 Gateway Timeout Error
    Disabling website Firewall, changing local machine’s DNS settings, turning off local machine’s VPN, disabling local machine’s network proxy may solve the problem. If not, and you have not changed any theme or plugin, you better conduct your hosting provider regarding the issue.

  3. Failed to Open Stream
    Change Permalink and .htaccess file.

  4. 429 Too Many Requests
    Deactivating and re-activating may help. If not, then contact the hosting provider.

  5. 413 Request Entity Too Large
    Increase size in wp-config.php
    @ini_set( 'upload_max_size' , '64M' );
    @ini_set( 'post_max_size', '64M');
    @ini_set( 'max_execution_time', '300' );
    If it doesn’t solve the problem edit your .htaccess file.
    php_value upload_max_filesize 64M
    php_value post_max_size 64M
    php_value max_execution_time 300
    php_value max_input_time 300

    The final option is to upload file via FTP.


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