Hello,
The error means that a value specified for one of the properties is incorrect. With the amount of blurring, we can only suppose that it is the Please select the final OU property, but there can be something else. For troubleshooting purposes, please, send us (support@adaxes.com) a full operation description without covering anything. To get it, select Create in the log record details, press Ctrl+A and then copy the text.