I'm sorry you're experiencing issues with the "Companies by tech stack with HG Insights" feature. While we don't have specific information about the current problem, I can guide you through the correct process to use this feature:
1. Go to your workspace home and select "Create new" for a new table.
2. Choose the HG Insights "Build company lists based on their tech stack" source.
3. Input the technologies you want to search for in the "Products" field.
4. Use additional filters to refine your search if needed.
5. Set limits on results and include additional data points as desired.
If you're still encountering issues after following these steps, it might be a technical problem. In that case, please request human assistance by clicking on "Talk to a person" for further investigation.