log tcp error

request/tr/tr.go

 package tr
 
 import (
+	"github.com/sirupsen/logrus"
 	"github.com/wpajqz/linker"
 )
 
 		status = v.Status
 	}
 
+	if status == linker.StatusInternalServerError {
+		logrus.Error(err)
+	}
+
 	ctx.Error(status, err.Error())
 
 	return true