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