Added mix data logging.

server/mixdata/mixdata.js

@@ -78,6 +78,7 @@ exports.mixdataUpload = async (req, res) => {
     res.status(500).JSON(error);
     logger.log("job-mixdata-upload-error", "ERROR", null, null, {
       error: error.message,
+      ...error,
     });
   }
 };