Joomla 4 and VM 3.8.9 10560 page can't be found errors

[ssc3]

Getting occasional page can't be found errors in Joomla 4 and VM 3.8.9 10560

The cause seems to be be passing messages via the redirect function which is deprecated.

However enqueueMessage() can be used instead.

in cart.php change

Code Select Expand

//$app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart&task='.$task,$this->useXHTML,$this->useSSL), $msg);
$app->enqueueMessage($msg);
$app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart&task='.$task,$this->useXHTML,$this->useSSL));

Code Select Expand

//$app->redirect(JRoute::_($relUrl,$this->useXHTML,$this->useSSL), $redirectMsg);
$app->enqueueMessage($redirectMsg);
$app->redirect(JRoute::_($relUrl,$this->useXHTML,$this->useSSL));


Code Select Expand

//$app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart'.$layoutName, FALSE), vmText::_('COM_VIRTUEMART_CART_CHECKOUT_DONE_CONFIRM_ORDER'));
$app->enqueueMessage(vmText::_('COM_VIRTUEMART_CART_CHECKOUT_DONE_CONFIRM_ORDER'));
$app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart'.$layoutName, FALSE));


Code Select Expand

// $app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart'.$this->getLayoutUrlString(), FALSE), vmText::_('COM_VIRTUEMART_CART_CHECKOUT_DATA_CHANGED'));
$app->enqueueMessage(vmText::_('COM_VIRTUEMART_CART_CHECKOUT_DATA_CHANGED'));
$app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart'.$this->getLayoutUrlString(), FALSE));

Code Select Expand

// $app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart'.$this->getLayoutUrlString(), FALSE), vmText::_('COM_VIRTUEMART_CART_CHECKOUT_DATA_NOT_VALID'));
$app->enqueueMessage(vmText::_('COM_VIRTUEMART_CART_CHECKOUT_DATA_NOT_VALID'));
$app->redirect(JRoute::_('index.php?option=com_virtuemart&view=cart'.$this->getLayoutUrlString(), FALSE));

edited to add other redirects in cart.php . Enqueue message before redirect.

These are the redirects causing the most common problems during checkout, but there are other similar redirects used elsewhere.