Debug error

[02-Jun-2025 00:37:42 UTC] PHP Fatal error: Uncaught TypeError: array_keys(): Argument #1 ($array) must be of type array, string given in/public_html/wp-content/plugins/opening-hours/index.php:1282 Stack trace: #0 /public_html/wp-content/plugins/opening-hours/index.php(1282): array_keys() #1 /public_html/wp-includes/class-wp-hook.php(324): we_are_open->admin_ajax() #2 /public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters() #3 /public_html/wp-includes/plugin.php(517): WP_Hook->do_action() #4 /public_html/wp-admin/admin-ajax.php(192): do_action() #5 {main} thrown in/public_html/wp-content/plugins/opening-hours/index.php on line 1282