Notice: Function wp_is_block_theme was called <strong>incorrectly</strong>. This function should not be called before the theme directory is registered. Please see <a href="https://developer.wordpress.org/advanced-administration/debug/debug-wordpress/">Debugging in WordPress</a> for more information. (This message was added in version 6.8.0.) in /var/www/html/wp-includes/functions.php on line 6121

Fatal error: Uncaught Error: Call to undefined function create_function() in /var/www/html/wp-content/themes/gopress/functions/flickr-widget.php:83
Stack trace:
#0 /var/www/html/wp-content/themes/gopress/functions.php(20): require()
#1 /var/www/html/wp-settings.php(695): include('/var/www/html/w...')
#2 /var/www/html/wp-config.php(133): require_once('/var/www/html/w...')
#3 /var/www/html/wp-load.php(50): require_once('/var/www/html/w...')
#4 /var/www/html/wp-blog-header.php(13): require_once('/var/www/html/w...')
#5 /var/www/html/index.php(17): require('/var/www/html/w...')
#6 {main}
  thrown in /var/www/html/wp-content/themes/gopress/functions/flickr-widget.php on line 83