Critical Error on PHP 8.0

I tried to use the URL query vars to add a product and got critical error each time

I debugged the code and found the error at includes/class.yith-request-quote.php Line 732.

Before PHP 8, you can merge an array with a null value, since PHP 8 you got a fatal error.

I hacked the code on Line 673 adding $raq_data = array();

I would like this fixed before the next release ??