Website is down since installing WPMU plugins

Hello,

My website purdi.com has gone down since installing, Smush, hummingbird and some other plugins. Not quite sure what to do, the last thing it was doing was reading files for optimisation.

    Predrag Dubajic

    Hi Kim,

    If you're site stopped working it probably means we're dealing with some kind of fatal error.

    Can you enable debug log in your wp-config.php file (located in root WP folder) by replacing define('WP_DEBUG', false); with this code:

    // Enable WP_DEBUG mode
    define('WP_DEBUG', true);
    
    // Enable Debug logging to the /wp-content/debug.log file
    define('WP_DEBUG_LOG', true);
    
    // Disable display of errors and warnings
    define('WP_DEBUG_DISPLAY', false);
    @ini_set( 'display_errors', 0 );

    Install the plugin and once it stops loading it should create debug.log file in your wp-content folder that could tell us what is going on.
    Can you please save it as .txt file and attach it here so we can check it out.

    Best regards,
    Predrag