'goodbye' command does not work

[Kerbx]

I think problem is here, in the last raw with 'goodbye':

['settings'] = {
			['Welcome'] = 'off',
			['Extra'] = 'on',
			--['Flood'] = 'off',
			['Silent'] = 'off',
			['Rules'] = 'off',
			['Reports'] = 'off',
			['Welbut'] = 'off', -- "read the rules" button under the welcome message
			['Weldelchain'] = 'off', -- delete the previously sent welcome message when a new welcome message is sent
			['Antibot'] = 'off',
			['Clean_service_msg'] = 'off',
			Goodbye = 'off',
		},

Can you fix it please?