Traceback (most recent call last):
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\sqlite3\base.py", line 413, in execute
    return Database.Cursor.execute(self, query, params)

The above exception (NOT NULL constraint failed: todo_todoitem.content) was the direct cause of the following exception:
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\core\handlers\base.py", line 179, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\Iulian\Desktop\todo\source\todo\views.py", line 14, in addtodo
    item.save()
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\base.py", line 753, in save
    self.save_base(using=using, force_insert=force_insert,
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\base.py", line 790, in save_base
    updated = self._save_table(
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\base.py", line 895, in _save_table
    results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\base.py", line 933, in _do_insert
    return manager._insert(
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\query.py", line 1249, in _insert
    return query.get_compiler(using=using).execute_sql(returning_fields)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\models\sql\compiler.py", line 1397, in execute_sql
    cursor.execute(sql, params)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 98, in execute
    return super().execute(sql, params)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 66, in execute
    return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 75, in _execute_with_wrappers
    return executor(sql, params, many, context)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\utils.py", line 90, in __exit__
    raise dj_exc_value.with_traceback(traceback) from exc_value
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
    return self.cursor.execute(sql, params)
  File "C:\Users\Iulian\AppData\Local\Programs\Python\Python38-32\lib\site-packages\django\db\backends\sqlite3\base.py", line 413, in execute
    return Database.Cursor.execute(self, query, params)