Since the update to Joomla 5.1.1 or VirtueMart 4.2.12, guests can no longer place orders. As a logged in customer it works without any problem.
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Error message
QuoteToo few arguments to function Joomla\Plugin\Editors\None\Extension\None::onDisplay(), 3 passed in /home/panmusic/public_html/libraries/src/Plugin/CMSPlugin.php on line 289 and at least 6 expected
The workaround recommended here (https://forum.virtuemart.net/index.php?topic=151193.0) is working. But after upgrading to com_virtuemart.4.2.14.11022 today, the issue has come back. So I implemented the workaround mentionned above once more. My website is ok now but I would like to report this issue in order to prevent future updates from broadcasting this error once more.