Server error message possibly due to missing PHP libraries (cURL, OpenSSL, etc.), incorrectly updated Apache/PHP libraries, firewall blocking, server problems with .htaccess files. Security is essential for Payment Service Providers, check software requirements. Contact: info@ideal-checkout.nl

Critical error in iDEAL Checkout installation script. Check the error log in "../idealcheckout/temp/". Issue: database configuration "../idealcheckout/configuration/database.php". In case of missing data, contact your hosting provider.

The error message indicates an issue with the database configuration of the plugin.

The installation script indicates a database table error. Check the database prefix in ../idealcheckout/configuration/database.php.

The system is attempting to add a record to a database table that already exists.