Getting error on bench migrate - patch v11_0.rename_workflow_action syntax error

I have imported the database backup successfully but after that when I am running the bench migrate command I am getting the error.

Migrating site2
Executing frappe.patches.v11_0.update_list_user_settings in site2 (_12d1ea37ad0e8d8d)
Success: Done in 0.831s
Executing frappe.patches.v11_0.rename_workflow_action_to_workflow_action_master #13-06-2018 in site2 (_12d1ea37ad0e8d8d)
Success: Done in 0.223s
Executing frappe.patches.v11_0.rename_email_alert_to_notification #13-06-2018 in site2 (_12d1ea37ad0e8d8d)
Success: Done in 0.233s
Executing frappe.patches.v11_0.delete_duplicate_user_permissions in site2 (_12d1ea37ad0e8d8d)
Traceback (most recent call last):
  File "/usr/lib/python3.5/runpy.py", line 184, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/utils/bench_helper.py", line 97, in <module>
    main()
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/utils/bench_helper.py", line 18, in main
    click.Group(commands=commands)(prog_name='bench')
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/commands/__init__.py", line 25, in _func
    ret = f(frappe._dict(ctx.obj), *args, **kwargs)
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/commands/site.py", line 228, in migrate
    migrate(context.verbose, rebuild_website=rebuild_website)
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/migrate.py", line 38, in migrate
    frappe.modules.patch_handler.run_all()
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/modules/patch_handler.py", line 29, in run_all
    if not run_single(patchmodule = patch):
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/modules/patch_handler.py", line 63, in run_single
    return execute_patch(patchmodule, method, methodargs)
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/modules/patch_handler.py", line 83, in execute_patch
    frappe.get_attr(patchmodule.split()[0] + ".execute")()
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/patches/v11_0/delete_duplicate_user_permissions.py", line 13, in execute
    .format(record.allow, record.user, frappe.db.escape(record.for_value), record.count - 1))
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/database/database.py", line 166, in sql
    self._cursor.execute(query)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/cursors.py", line 170, in execute
    result = self._query(query)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/cursors.py", line 328, in _query
    conn.query(q)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/connections.py", line 516, in query
    self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/connections.py", line 727, in _read_query_result
    result.read()
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/connections.py", line 1066, in read
    first_packet = self.connection._read_packet()
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/connections.py", line 683, in _read_packet
    packet.check_error()
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/protocol.py", line 220, in check_error
    err.raise_mysql_exception(self._data)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/err.py", line 109, in raise_mysql_exception
    raise errorclass(errno, errval)
pymysql.err.ProgrammingError: (1064, "You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'Kolkata'' limit 1' at line 2")
nivedita@nivedita:~/frappe-bench$ bench migrate
Migrating site2
Executing frappe.patches.v11_0.delete_duplicate_user_permissions in site2 (_12d1ea37ad0e8d8d)
Traceback (most recent call last):
  File "/usr/lib/python3.5/runpy.py", line 184, in _run_module_as_main
    "__main__", mod_spec)
  File "/usr/lib/python3.5/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/utils/bench_helper.py", line 97, in <module>
    main()
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/utils/bench_helper.py", line 18, in main
    click.Group(commands=commands)(prog_name='bench')
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 722, in __call__
    return self.main(*args, **kwargs)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 697, in main
    rv = self.invoke(ctx)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 1066, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 895, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/core.py", line 535, in invoke
    return callback(*args, **kwargs)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/commands/__init__.py", line 25, in _func
    ret = f(frappe._dict(ctx.obj), *args, **kwargs)
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/commands/site.py", line 228, in migrate
    migrate(context.verbose, rebuild_website=rebuild_website)
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/migrate.py", line 38, in migrate
    frappe.modules.patch_handler.run_all()
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/modules/patch_handler.py", line 29, in run_all
    if not run_single(patchmodule = patch):
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/modules/patch_handler.py", line 63, in run_single
    return execute_patch(patchmodule, method, methodargs)
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/modules/patch_handler.py", line 83, in execute_patch
    frappe.get_attr(patchmodule.split()[0] + ".execute")()
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/patches/v11_0/delete_duplicate_user_permissions.py", line 13, in execute
    .format(record.allow, record.user, frappe.db.escape(record.for_value), record.count - 1))
  File "/home/nivedita/frappe-bench/apps/frappe/frappe/database/database.py", line 166, in sql
    self._cursor.execute(query)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/cursors.py", line 170, in execute
    result = self._query(query)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/cursors.py", line 328, in _query
    conn.query(q)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/connections.py", line 516, in query
    self._affected_rows = self._read_query_result(unbuffered=unbuffered)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/connections.py", line 727, in _read_query_result
    result.read()
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/connections.py", line 1066, in read
    first_packet = self.connection._read_packet()
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/connections.py", line 683, in _read_packet
    packet.check_error()
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/protocol.py", line 220, in check_error
    err.raise_mysql_exception(self._data)
  File "/home/nivedita/frappe-bench/env/lib/python3.5/site-packages/pymysql/err.py", line 109, in raise_mysql_exception
    raise errorclass(errno, errval)
pymysql.err.ProgrammingError: (1064, "You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'Kolkata'' limit 1' at line 2")

I run the bench update command before hand and update is done.
But I am unable to migrate the database.

Please suggest.

@nabinhait please review this thanks!