Can't change validation setting without error

[David Brockwell]

I'm having a problem with changing the Validation setting. I have it set to email validation but when I change it to something else I get the below error.

ErrorException: array_filter() expects parameter 1 to be array, null given (2)
#0 [internal function]: IPS\IPS::errorHandler(2, 'array_filter() ...', '/var/sites/o/on...', 103, Array)
#1 /var/sites/o/ontopica.net/public_html/system/Helpers/Form/Address.php(103): array_filter(NULL)
#2 /var/sites/o/ontopica.net/public_html/system/Helpers/Form/FormAbstract.php(158): IPS\Helpers\Form\_Address->getValue()
#3 /var/sites/o/ontopica.net/public_html/system/Helpers/Form/FormAbstract.php(138): IPS\Helpers\Form\_FormAbstract->setValue(true)
#4 /var/sites/o/ontopica.net/public_html/applications/core/modules/admin/membersettings/registration.php(58): IPS\Helpers\Form\_FormAbstract->__construct('coppa_address', Object(IPS\GeoLocation), false, Array, NULL, NULL, NULL, 'coppa_address')
#5 /var/sites/o/ontopica.net/public_html/system/Dispatcher/Controller.php(96): IPS\core\modules\admin\membersettings\_registration->manage()
#6 /var/sites/o/ontopica.net/public_html/applications/core/modules/admin/membersettings/registration.php(34): IPS\Dispatcher\_Controller->execute()
#7 /var/sites/o/ontopica.net/public_html/system/Dispatcher/Dispatcher.php(129): IPS\core\modules\admin\membersettings\_registration->execute()
#8 /var/sites/o/ontopica.net/public_html/admin/index.php(13): IPS\_Dispatcher->run()
#9 {main}