why doesn't the save () command in django work?

please help me solve the problem.

I study the Django framework at the course https: //webformyself.com/djang ... ign = django, everything went fine until I got to Part 1, Lesson 9.

When trying to save records to the database via the news1.save () variable, an error occurs:

news1.save () Traceback (most recent call last): File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ backends \ utils.py", line 84, in _execute return self.cursor.execute (sql, params) File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ backends \ sqlite3 \ base.py", line 413, in exec ute return Database.Cursor.execute (self, query, params) sqlite3.OperationalError: table news_news has no column named updated_at

The above exception was the direct cause of the following exception:

Traceback (most recent call last): File "", line 1, in File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ models \ base.py", line 753, in save self.save_base (using = using, force_insert = force_insert, File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ models \ base.py", line 790, in save_base updated = self._save_table ( File "D: \ django-sites \ testsite \ venv \ 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 "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ models \ base.py", line 933, in _do_insert return manager._insert ( File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ models \ manager.py", line 85, in manager_meth od return getattr (self.get_queryset (), name) (* args, ** kwargs) File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ models \ query.py", line 1254, in _insert return query.get_compiler (using = using) .execute_sql (returning_fields) File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ models \ sql \ compiler.py", line 1397, in execu te_sql cursor.execute (sql, params) File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ backends \ utils.py", line 98, in execute return super (). execute (sql, params) File "D: \ django-sites \ testsite \ venv \ 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 "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ backends \ utils.py", line 75, in _execute_wit h_wrappers return executor (sql, params, many, context) File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ backends \ utils.py", line 84, in _execute return self.cursor.execute (sql, params) File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ utils.py", line 90, in exit raise dj_exc_value.with_traceback (traceback) from exc_value File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ backends \ utils.py", line 84, in _execute return self.cursor.execute (sql, params) File "D: \ django-sites \ testsite \ venv \ lib \ site-packages \ django \ db \ backends \ sqlite3 \ base.py", line 413, in exec ute return Database.Cursor.execute (self, query, params) django.db.utils.OperationalError: table news_news has no column named updated_at

I have already started the whole course 3 times from the beginning, searched the entire Internet, but I could not find a solution.

Help me please!

error screenshot - https://imgur.com/wjuSieM