You need o account for this field during new account creation. The ajax submission is returning a 500 error page because there is no default value for the is_disable field:

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Traceback:
File "/home/jason/.virtualenvs/my.jobs/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  115.                         response = callback(request, *callback_args, **callback_kwargs)
File "/home/jason/django/MyJobs/../MyJobs/myjobs/views.py" in home
  75.                 new_user = User.objects.create_inactive_user(**registrationform.
File "/home/jason/django/MyJobs/myjobs/models.py" in create_inactive_user
  35.         user.save(using=self._db)
File "/home/jason/.virtualenvs/my.jobs/local/lib/python2.7/site-packages/django/db/models/base.py" in save
  546.                        force_update=force_update, update_fields=update_fields)
File "/home/jason/.virtualenvs/my.jobs/local/lib/python2.7/site-packages/django/db/models/base.py" in save_base
  650.                 result = manager._insert([self], fields=fields, return_id=update_pk, using=using, raw=raw)
File "/home/jason/.virtualenvs/my.jobs/local/lib/python2.7/site-packages/django/db/models/manager.py" in _insert
  215.         return insert_query(self.model, objs, fields, **kwargs)
File "/home/jason/.virtualenvs/my.jobs/local/lib/python2.7/site-packages/django/db/models/query.py" in insert_query
  1673.     return query.get_compiler(using=using).execute_sql(return_id)
File "/home/jason/.virtualenvs/my.jobs/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py" in execute_sql
  937.             cursor.execute(sql, params)
File "/home/jason/.virtualenvs/my.jobs/local/lib/python2.7/site-packages/django/db/backends/util.py" in execute
  41.             return self.cursor.execute(sql, params)
File "/home/jason/.virtualenvs/my.jobs/local/lib/python2.7/site-packages/django/db/backends/mysql/base.py" in execute
  120.             return self.cursor.execute(query, args)
File "/home/jason/.virtualenvs/my.jobs/local/lib/python2.7/site-packages/MySQLdb/cursors.py" in execute
  203.         if not self._defer_warnings: self._warning_check()
File "/home/jason/.virtualenvs/my.jobs/local/lib/python2.7/site-packages/MySQLdb/cursors.py" in _warning_check
  117.                     warn(w[-1], self.Warning, 3)

Exception Type: Warning at /
Exception Value: Field 'is_disabled' doesn't have a default value
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