nuBuilder Forum

The error message should provide more details. Are you sure there isn’t any more information shown?

Yes, the only message remains “Sorry.Invalid session id” and NuDebug remains empty. Maybe i have to wait for a new update in due time?

As shown in the screenshot, the error message is expected to display additional details provided via the parameter.
You can add debug statements yourself if you know how to do it - or ask someone who does and test it in your hosting environment to find out why it's not working.