I updated my php version is 8.3 and magento version is 2.4.6
currently facing issue with round functionality.
Exception message: Deprecated Functionality: round(): Passing null to parameter #1 ($num) of type int|float is deprecated
Fee.php
$amount = $invoice->getHandlingCharges();
$amount += round($invoice->getHandlingChargesTax(), 3, PHP_ROUND_HALF_UP);
$baseAmount = $invoice->getBaseHandlingCharges();
$baseAmount += round($invoice->getBaseHandlingChargesTax(), 3, PHP_ROUND_HALF_UP);
$invoice->setGrandTotal($invoice->getGrandTotal() + $amount);
$invoice->setBaseGrandTotal($invoice->getBaseGrandTotal() + $baseAmount);
return $this;
please help