Fatal error: Uncaught Error: Call to undefined function add_action() in /var/www/html/olympiads/wp-content/plugins-tmp-06-2023/gutenberg/build/block-library/blocks/loginout.php:51
Stack trace:
#0 {main}
thrown in /var/www/html/olympiads/wp-content/plugins-tmp-06-2023/gutenberg/build/block-library/blocks/loginout.php on line 51