Fatal error: Uncaught Error: Class ‘WP_Block_Styles_Registry’

From this post on WordPress.org “Fixing fatal error after 5.30 update“, it mentions issues with Gutenberg.

I installed the Glutenberg plugin and the website is now loading properly.

Hope this comes to use for the future for anyone else!

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)