The Rollbar Item Detail page is designed to show you what the error is and help you identify patterns so you can find the cause. You can also change the status or level, create an issue in your bug tracking system, or add a comment.
The traceback, if there is one, is presented with library code collapsed, making it easier to read (or tell if the problem isn't even in your code). If you connect with GitHub, in-project filenames will be linked to the file and line in GitHub.
The Activity Feed shows the history, including comments and status changes.
Scan the Occurrence Table for patterns—browser, host, URL, request params, etc.
Or drill down to individual occurrences to get the full details and context. Our libraries collect a wide variety of context data when available, including request params, client or server environment, and affected user.