The installation script indicates that an error occurs while executing queries, and the database table cannot be found:

The database prefix may not be set correctly in the file ../idealcheckout/configuration/database.php

The installation script may not have been executed correctly:

• http://www.your-website-name.com/idealcheckout/install.php
• http://www.your-website-name.com/webshop/idealcheckout/install.php

The plugin may not be compatible with the version of the software package being used.

• Please check if the correct plugin has been downloaded. (On the website, you can see for which versions the plugin is available.)