Global Search DB Table help not found

Traceback (most recent call last):
  File "/home/frappe/frappe-bench/apps/frappe/frappe/app.py", line 62, in application
    response = frappe.handler.handle()
  File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 22, in handle
    data = execute_cmd(cmd)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 53, in execute_cmd
    return frappe.call(method, **frappe.form_dict)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/__init__.py", line 939, in call
    return fn(*args, **newargs)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/utils/help.py", line 30, in get_help
    return HelpDatabase().search(text)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/utils/help.py", line 104, in search
    select title, intro, path from help where match(content) against (%s) limit 10''', ('%'+words+'%', words))
  File "/home/frappe/frappe-bench/apps/frappe/frappe/database.py", line 166, in sql
    self._cursor.execute(query, values)
  File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/cursors.py", line 165, in execute
    result = self._query(query)
  File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/cursors.py", line 321, in _query
    conn.query(q)
  File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/connections.py", line 860, in query
    self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/connections.py", line 1061, in _read_query_result
    result.read()
  File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/connections.py", line 1349, in read
    first_packet = self.connection._read_packet()
  File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/connections.py", line 1018, in _read_packet
    packet.check_error()
  File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/connections.py", line 384, in check_error
    err.raise_mysql_exception(self._data)
  File "/home/frappe/frappe-bench/env/local/lib/python2.7/site-packages/pymysql/err.py", line 107, in raise_mysql_exception
    raise errorclass(errno, errval)
ProgrammingError: (1146, u"Table '2ccbb056346e1fb5.help' doesn't exist")

Clean install. Any hints how to fix this?

bench setup-help fixed it.