Internal Server Error On Frappe Site

More often than not, this error represents some application related issue. If your site is on custom bench group, then you can investigate the same with logs or ssh access. It is a possibility that your custom app is throwing an error. You can view the same in web.error.log. Refer our docs for the same.

If you occassionally get a pop-up with the same message, it is likely that a background job is failing. In such cases, checking your Scheduled Job Log, Error Log and worker.err.log file should help.