Djanggo python - база данных

Я работаю над проектом Djanggo Pyhton на веб-базе. Моя проблема заключается в том, что сайт каким-то образом отображает ошибку, которая является ошибкой таймаута, что означает, что что-то не так в коде, но я не могу найти, где ошибка. Вот код

смотрит fle

# Create your views here.
from datetime import datetime as dt, time
#from dateutil.parser import parse, tz
from django.http import JsonResponse, HttpResponse
from django.conf import settings
from django.contrib.auth.decorators import permission_required
from django.core import serializers
from django.core.serializers import serialize
from django.core.serializers.json import DjangoJSONEncoder
from django.forms.models import inlineformset_factory, modelformset_factory
from django.forms import formset_factory, BaseModelFormSet
from django.shortcuts import get_object_or_404, render, redirect
from itertools import islice
from django.db.models import F
import collections
import json
import os

from .forms import MitsubishiLiftForm
from .models import MitsubishiLift
from report.audit_log import log_addition, log_change, log_deletion, backup_log, restore_log
from .settings import settings_write, settings_read
from hardware.forms import ImportConfigurationForm



 @permission_required('setting.add_mconfig', raise_exception = True)
def liftconfiguration_mconfig(request):
    title = "Enter Configuration"
    index_temp = "liconfiguration/index.html"
    form = MitsubishiLiftForm(request.POST or None)
 
    if form.is_valid():
        new_obj = form.save()
        log_addition(request, form, new_obj)
        return redirect('setting:liconfiguration_index')

    context = {
        "title": title,
        "form": form,
        "index_temp": index_temp,
    }
    return render(request, "liconfiguration/indexr2.html", context)

файл моделей

from django.db import models

class MitsubishiLift(models.Model):
    id = models.AutoField(primary_key = True)
    ELSGW_ipaddress = models.CharField(max_length = 50)
    ELSGW_port = models.CharField(max_lenght = 20)
    local_port = models.CharField(max_lenght = 20)
    ELSGW_devnum = models.IntegerField(null = True, blank = True)
    reader_num = models.IntegerField(null = True, blank = True)
    boarding_floor = models.IntegerField(null = True, blank = True)
    
    def __str__(self):
        return self.ELSGW_ipaddress

urls file

url(r'^liconfiguration/new$', views.liftconfiguration_mconfig, name = 'liftconfiguration_mconfig'),

init файлы (формы)

from setting.forms.mitsubishi_form import MitsubishiLiftForm

база данных

id integer NOT NULL,
"ELSGW_ipaddress" character varying(50) COLLATE pg_catalog."default",
"ELSGW_port" character varying(20) COLLATE pg_catalog."default",
local_port character varying(20) COLLATE pg_catalog."default",
"ELSGW_devnum" integer,
reader_num integer,
boarding_floor integer,
CONSTRAINT liftintegration_mitsubishi_pkey PRIMARY KEY (id)

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