Media Library Error

Hey there, @jmeyer2485, thank you for reaching out.

And I’m really sorry for the inconvenience, in this case, can we try two things:

1 – Reinstall Smush, just to make sure that during the installation process nothing happened (like a network hiccup).

And 2 – Let’s try enabling debug mode on WordPress, so we can see where that error is coming from. You can find the process here but basically, you just need to replace the following line on wp-config.php:
define( 'WP_DEBUG_DISPLAY', false );
by

// 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 );

// Use dev versions of core JS and CSS files (only needed if you are modifying these core files)
define( 'SCRIPT_DEBUG', true );

Once you do that, please check the page again to generate the error, and a debug.log file will be created on wp-content folder and share the error with us.

Looking forward to your reply.

Jorge