Uncaught Error: Call to undefined function

I work with Christy, I am adding more information about the problem including the stack trace:

WordPress version 5.8.3
Current theme: Avada Child (version 1.0.0)
Current plugin: FooBox HTML & Media Lightbox (version 2.4.0.0)
PHP version 8.0.12

Error Details
=============
An error of type E_ERROR was caused in line 409 of the file
/home/dh_qgdzti/nofamass.org/wp-content/plugins/foobox/includes/wp_pluginbase.php.
Error message: Uncaught Error: Call to undefined function
create_function() in
/home/dh_qgdzti/nofamass.org/wp-content/plugins/foobox/includes/wp_pluginbase.php:409
Stack trace:
#0 /home/dh_qgdzti/nofamass.org/wp-content/plugins/foobox/includes/wp_pluginbase.php(431):
wp_pluginbase_v2_6_2->admin_settings_add_section('general-license',
'License', '')
#1 /home/dh_qgdzti/nofamass.org/wp-content/plugins/foobox/includes/FooBox_Settings.php(24):
wp_pluginbase_v2_6_2->admin_settings_add_section_to_tab('general',
'general-license', 'License')
#2 /home/dh_qgdzti/nofamass.org/wp-content/plugins/foobox/foobox.php(165):
FooBox_Settings::admin_settings_init(Object(fooboxV2))
#3 /home/dh_qgdzti/nofamass.org/wp-includes/class-wp-hook.php(303):
fooboxV2->admin_settings_init('')
#4 /home/dh_qgdzti/nofamass.org/wp-includes/class-wp-hook.php(327):
WP_Hook->apply_filters(NULL, Array)
#5 /home/dh_qgdzti/nofamass.org/wp-includes/plugin.php(470):
WP_Hook->do_action(Array)
#6 /home/dh_qgdzti/nofamass.org/wp-admin/admin.php(175): do_action('admin_init')
#7 /home/dh_qgdzti/nofamass.org/wp-admin/plugins.php(10):
require_once('/home/dh_qgdzti...')
#8 {main}
  thrown