A customer faced critical errors while upgrading to a newer osCommerce version after their web host switched to PHP 8.1. Deprecation warnings and a missing security file blocked progress, putting their store at risk. With step-by-step guidance from the osCommerce support team, they applied key fixes - modifying PHP settings and enabling essential directives - to successfully complete the migration.
Read the full success story and detailed troubleshooting guide on the osCommerce blog!