Pluggin not working error

Hello ! Thank again for your amazing plugin.

Just got a error message displaying on WordPress dashboard and plugin seems not working suddenly.
Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘OoohBoi_Steroids’ does not have a method ‘admin_notice_minimum_php_version’ in /home3/emeric/public_html/wp-includes/class-wp-hook.php on line 303

Thank you in advance for your support for troubleshooting

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