Python django.template.loaders.filesystem.Loader不适用于django应用程序

我在digital ocean上有两个VP在为一个应用程序服务，mydomain.com在第一个应用程序上工作。我需要设置一个舞台环境，我得到：

TemplateDoesNotExist at /accounts/login/
accounts/login.html

无法登录。我的项目可见：

Python Path:    
['/home/django/bookmarks_tracker/bookmarks_tracker',
 '/home/django/bookmarks_tracker',
...

但模板的默认文件系统加载程序已损坏：

Django tried loading these templates, in this order:
Using loader django.template.loaders.filesystem.Loader:
Using loader django.template.loaders.app_directories.Loader:
/usr/lib/python2.7/dist-packages/django/contrib/admin/templates/accounts/login.html (File does not exist)
/usr/lib/python2.7/dist-packages/django/contrib/auth/templates/accounts/login.html (File does not exist)
/usr/local/lib/python2.7/dist-packages/bootstrapform/templates/accounts/login.html (File does not exist)
/home/django/bookmarks_tracker/helpdesk/templates/accounts/login.html (File does not exist)
/usr/local/lib/python2.7/dist-packages/crispy_forms/templates/accounts/login.html (File does not exist)
/usr/local/lib/python2.7/dist-packages/django_extensions/templates/accounts/login.html (File does not exist)
/usr/local/lib/python2.7/dist-packages/mptt/templates/accounts/login.html (File does not exist)

我确实在settings.py中为它提供了默认的文件系统加载程序：

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, "templates"), os.path.join(BASE_DIR, "helpdesk/templates"),],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

模板的结构在我的工作VPS中是相同的，django版本也是相同的。是什么原因导致它在应用程序内部查看，而不是模板目录？多谢各位