Duplicate field Astra theme

Hello friends,
I have installed the plugin and it duplicates the text field.
I have already read that they have talked about this problem before and I have placed the code in my functions.php:

add_filter (‘ppom_remove_duplicate_fields’, function ($ apply) {return false;}, 999);

but it does not work.
Someone who has had the same problem lately and can help me please

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