Fatal error: Uncaught Error: Call to undefined function plugins_url() in /wp-includes/plugin.php:849 Stack trace: #0 /wp-content/plugins/simply-gallery-block/plugin.php(35): plugin_dir_url('/wp-content/plu...') #1 /wp-settings.php(462): include_once('/wp-content/plu...') #2 /wp-config.php(85): require_once('/wp-settings.ph...') #3 /wp-load.php(50): require_once('/wp-config.php') #4 /wp-blog-header.php(13): require_once('/wp-load.php') #5 /index.php(17): require('/wp-blog-header...') #6 {main} thrown in /wp-includes/plugin.php on line 849