Custom app & doctype causing errors

I am trying to create a custom app called Series using
bench new-app series
bench install-app series

If I do this and then visit my site I get an Internal Server Error which disappears with bench restart.

I then try to create a new doctype by adding a title field and saving. When I visit /desk#List/Series/List I get the following error. I have tried the bitnami gcloud install along with debian and ubuntu and using several different online tutorials but always end up with the same results.

Something went wrong
Server Error: Please check your server logs or contact tech support.
Traceback (most recent call last):
File “/home/social/frappe-bench/apps/frappe/frappe/”, line 62, in application
response = frappe.handler.handle()
File “/home/social/frappe-bench/apps/frappe/frappe/”, line 22, in handle
data = execute_cmd(cmd)
File “/home/social/frappe-bench/apps/frappe/frappe/”, line 53, in execute_cmd
return, **frappe.form_dict)
File “/home/social/frappe-bench/apps/frappe/frappe/”, line 939, in call
return fn(*args, **newargs)
File “/home/social/frappe-bench/apps/frappe/frappe/desk/”, line 21, in get
data = compress(execute(**args), args = args)
File “/home/social/frappe-bench/apps/frappe/frappe/desk/”, line 26, in execute
return DatabaseQuery(doctype).execute(*args, **kwargs)
File “/home/social/frappe-bench/apps/frappe/frappe/model/”, line 88, in execute
result = self.build_and_run()
File “/home/social/frappe-bench/apps/frappe/frappe/model/”, line 112, in build_and_run
return frappe.db.sql(query, as_dict=not self.as_list, debug=self.debug, update=self.update)
File “/home/social/frappe-bench/apps/frappe/frappe/”, line 176, in sql
File “/home/social/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/”, line 165, in execute
result = self._query(query)
File “/home/social/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/”, line 321, in _query
File “/home/social/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/”, line 860, in query
self._affected_rows = self._read_query_result(unbuffered=unbuffered)
File “/home/social/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/”, line 1061, in _read_query_result
File “/home/social/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/”, line 1349, in read
first_packet = self.connection._read_packet()
File “/home/social/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/”, line 1018, in _read_packet
File “/home/social/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/”, line 384, in check_error
File “/home/social/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/”, line 107, in raise_mysql_exception
raise errorclass(errno, errval)
InternalError: (1054, u"Unknown column ‘tabSeries.owner’ in ‘field list’")

are you using production mode or developer mode?

have you add developer_mode to site config?

I installed --production but later enabled developer_mode in config.

there are something wrong with the doctype
try create another one