Fatal error: Uncaught Exception: Error while making tickets.attendee_registration: nothing is bound to the 'tickets.attendee_registration' id and it's not an existing or instantiable class.
in /home/.sites/84/site5662025/web/KUMST/wp-content/plugins/the-events-calendar/common/src/Common/Contracts/Container.php on line 27

Call stack:

1. TEC\C\C\Container::get()
   wp-content/plugins/the-events-calendar/common/vendor/vendor-prefixed/lucatume/di52/src/Container.php:271
2. TEC\C\l\D\Container::make()
   wp-content/plugins/the-events-calendar/common/src/Tribe/Container.php:179
3. tribe()
   wp-content/themes/customizr/inc/czr-init-ccat.php:1231
4. czr_fn_is_et_attendees_registration()
   wp-content/themes/customizr/inc/czr-init-ccat.php:1249
5. czr_fn_et_disable_on_attendees_registration()
   wp-includes/class-wp-hook.php:324
6. WP_Hook::apply_filters()
   wp-includes/plugin.php:205
7. apply_filters()
   wp-content/themes/customizr/inc/czr-front-ccat.php:6275
8. CZR_post_list_grid::czr_fn_is_grid_enabled()
   wp-content/themes/customizr/inc/czr-front-ccat.php:5666
9. CZR_post_list_grid::czr_fn_maybe_excl_first_sticky()
   wp-includes/class-wp-hook.php:324
10. WP_Hook::apply_filters()
    wp-includes/class-wp-hook.php:348
11. WP_Hook::do_action()
    wp-includes/plugin.php:565
12. do_action_ref_array()
    wp-includes/class-wp-query.php:1881
13. WP_Query::get_posts()
    wp-includes/class-wp-query.php:3824
14. WP_Query::query()
    wp-includes/class-wp.php:696
15. WP::query_posts()
    wp-includes/class-wp.php:816
16. WP::main()
    wp-includes/functions.php:1336
17. wp()
    wp-blog-header.php:16
18. require()
    index.php:17