Who can help me with the Error in the ONECTI?
Unfortunately, this error doesn't appear anywhere. I have checked multiple websites, but none provides viable information related to this application. The only thing I recommend is checking the official website of the developers. There is a support section available and if you are already a customer, then you should be able to log-in and get in touch with a technician.
Support page: https://support.intranext.com/Login.aspx?ReturnUrl=%2f