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I don't know why it comes up like this. my django page doesn't work. could you give me any advice?? thanks!!

Traceback (most recent call last):   File "/home/xxxxyyyy/kkkkk/venv/lib/python3.8/site-packages/django/core/handlers/exception.py", line 55, in inner     response = get_response(request)   File "/home/xxxxyyyy/kkkkk/venv/lib/python3.8/site-packages/django/core/handlers/base.py", line 220, in _get_response     response = response.render()   File "/home/xxxxyyyy/kkkkk/venv/lib/python3.8/site-packages/django/template/response.py", line 114, in render     self.content = self.rendered_content   File "/home/xxxxyyyy/kkkkk/venv/lib/python3.8/site-packages/django/template/response.py", line 92, in rendered_content     return template.render(context, self._request)   File "/home/xxxxyyyy/kkkkk/venv/lib/python3.8/site-packages/django/template/backends/django.py", line 62, in render     return self.template.render(context)   File "/home/xxxxyyyy/kkkkk/venv/lib/python3.8/site-packages/django/template/base.py", line 173, in render     with context.bind_template(self):   File "/usr/lib/python3.8/contextlib.py", line 113, in enter     return next(self.gen)   File "/home/xxxxyyyy/kkkkk/venv/lib/python3.8/site-packages/django/template/context.py", line 254, in bind_template     updates.update(processor(self.request))

It looks like you're trying to iterate over an object in a template and passing None into the template, so you're getting that error. Check the view code and make sure that you do not send None to the template if you mean to iterate over it.