Nictitate

Hello, there was an error /wp-admin/admin-ajax.php 403 (Forbidden) https://shot.qip.ru/00QPGK-3mqQ2hJf4/ tried to fix the problem, most failed to do it, the topic of the hike is not friendly with Advanced Custom Fields, and maybe not the problem in it, tried to delete the line https://shot.qip.ru/00QPGK-6mqQ2hJf5/ the problem disappears.
I would really appreciate any help, thanks!

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