Fatal error from trying to create table using the API

Hello,

I'm using the following code (taken from the documentation) to create a table called in the database.

add_action( 'init', 'prefix_create_table' );
function prefix_create_table() {
if ( ! class_exists( 'MB_Custom_Table_API' ) ) {
return;
}
global $wpdb;
MB_Custom_Table_API::create( "{$wpdb->prefix}firesmart_plants", array(
"_firesmart_plants_sc_name" => 'TEXT NOT NULL',
));
}

However, I get the following error:

Fatal error: Uncaught mysqli_sql_exception: Table 'firesmartbc.rbma_firesmart_plants' doesn't exist in /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-includes/wp-db.php:2056 Stack trace: #0 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-includes/wp-db.php(2056): mysqli_query(Object(mysqli), 'DESCRIBE rbma_f...') #1 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-includes/wp-db.php(1945): wpdb->do_query('DESCRIBE rbma_f...') #2 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-includes/wp-db.php(2695): wpdb->query('DESCRIBE rbma_f...') #3 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-admin/includes/upgrade.php(2749): wpdb->get_results('DESCRIBE rbma_f...') #4 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-content/plugins/meta-box-aio/vendor/meta-box/mb-custom-table/src/API.php(20): dbDelta(Array) #5 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-content/themes/firesmartbc/functions.php(278): MetaBox\CustomTable\API::create('rbma_firesmart...', Array) #6 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-includes/class-wp-hook.php(303): prefix_create_table('') #7 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array) #8 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-includes/plugin.php(470): WP_Hook->do_action(Array) #9 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-settings.php(578): do_action('init') #10 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-config.php(80): require_once('/Applications/X...') #11 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-load.php(50): require_once('/Applications/X...') #12 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-blog-header.php(13): require_once('/Applications/X...') #13 /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/index.php(17): require('/Applications/X...') #14 {main} thrown in /Applications/XAMPP/xamppfiles/htdocs/firesmartbc.ca/wp-includes/wp-db.php on line 2056

I've tried also hooking in at other times, and using the other code from the documentation.
Any ideas what could be happening? Also, is this plugin tested for PHP 8.1.1 ? That is the version we're running on.

Thanks!