[2019-12-23 10:40:22] LOG.INFO: Creating DjVu for in.ernet.dli.2015.441667 from Pdf [] [] [2019-12-23 10:40:22] LOG.INFO: Requesting start of conversion of in.ernet.dli.2015.441667 [] [] [2019-12-23 10:40:22] LOG.CRITICAL: Server error: `GET http://tools.wmflabs.org/phetools/pdf_to_djvu_cgi.py?cmd=convert&ia_id=in.ernet.dli.2015.441667` resulted in a `503 SERVICE UNAVAILABLE` response: