InternalError: (1054, u"Unknown column 'appointment' in 'field list'")

I’m getting this error when click submit button on Point Of Sale (POS).
I’m already using bench update and still nothing happen.
What should I do? Please Help!

Traceback (most recent call last):
File “/home/osboxes/modenas-bench/apps/frappe/frappe/desk/form/save.py”, line 19, in savedocs
doc.submit()
File “/home/osboxes/modenas-bench/apps/frappe/frappe/model/document.py”, line 831, in submit
self._submit()
File “/home/osboxes/modenas-bench/apps/frappe/frappe/model/document.py”, line 820, in _submit
self.save()
File “/home/osboxes/modenas-bench/apps/frappe/frappe/model/document.py”, line 256, in save
return self._save(*args, **kwargs)
File “/home/osboxes/modenas-bench/apps/frappe/frappe/model/document.py”, line 279, in _save
self.insert()
File “/home/osboxes/modenas-bench/apps/frappe/frappe/model/document.py”, line 230, in insert
self.db_insert()
File “/home/osboxes/modenas-bench/apps/frappe/frappe/model/base_document.py”, line 303, in db_insert
), list(d.values()))
File “/home/osboxes/modenas-bench/apps/frappe/frappe/database.py”, line 173, in sql
self._cursor.execute(query, values)
File “/home/osboxes/modenas-bench/env/lib/python2.7/site-packages/pymysql/cursors.py”, line 165, in execute
result = self._query(query)
File “/home/osboxes/modenas-bench/env/lib/python2.7/site-packages/pymysql/cursors.py”, line 321, in _query
conn.query(q)
File “/home/osboxes/modenas-bench/env/lib/python2.7/site-packages/pymysql/connections.py”, line 860, in query
self._affected_rows = self._read_query_result(unbuffered=unbuffered)
File “/home/osboxes/modenas-bench/env/lib/python2.7/site-packages/pymysql/connections.py”, line 1061, in _read_query_result
result.read()
File “/home/osboxes/modenas-bench/env/lib/python2.7/site-packages/pymysql/connections.py”, line 1349, in read
first_packet = self.connection._read_packet()
File “/home/osboxes/modenas-bench/env/lib/python2.7/site-packages/pymysql/connections.py”, line 1018, in _read_packet
packet.check_error()
File “/home/osboxes/modenas-bench/env/lib/python2.7/site-packages/pymysql/connections.py”, line 384, in check_error
err.raise_mysql_exception(self._data)
File “/home/osboxes/modenas-bench/env/lib/python2.7/site-packages/pymysql/err.py”, line 107, in raise_mysql_exception
raise errorclass(errno, errval)
InternalError: (1054, u"Unknown column ‘appointment’ in ‘field list’")

Anybody?