I recently moved to a new dedicated server using MariaDB 10.6.16. I had a problem with my DA update pages if any of the fields were set to use the default value if the post value was empty. In the update behavior I changed all WA_DEFAULT values to WA_IGNORE and that fixed it. Hope this helps but if not, add PHP error reporting to the top of your page, run the Insert behavior and tell us what the error message says:
<?php
error_reporting(E_ALL);
ini_set('display_errors','on');
?>


