We understand you're facing challenges with your Personal Developer Instance (PDI) issued by the ServiceNow Developer Program.
Unfortunately we are not able to offer direct support from NowLearning for the PDI Developer instances, we are only able to help you with Lab Instances(nlinst...) that are supplied with your on-demand course or simulator enrolled in on NowLearning.
For PDI related inquires, they provide a range of self-service guides and resources to help you resolve your issues. You can find detailed information and troubleshooting steps in the PDI guide available at this link: developer.servicenow.com.
We hope these resources help you address and resolve your PDI-related concerns effectively.