TypeError: CRM_Core_Payment_OmnipayMultiProcessor::doPayment(): Return value must be of type array, none returned

[magnolia61]

Hello,
I saw this error in our logs

TypeError: CRM_Core_Payment_OmnipayMultiProcessor::doPayment(): Return value must be of type array, none returned in CRM_Core_Payment_OmnipayMultiProcessor->doPayment() (line 252 of /var/www/vhosts/xyz/web/sites/all/modules/civicrm_extensions/nz.co.fuzion.omnipaymultiprocessor/CRM/Core/Payment/OmnipayMultiProcessor.php).

Could that be solved by adding

return [];

to
/CRM/Core/Payment/OmnipayMultiProcessor.php
on line 242?
(after the $response->redirect();)

so that at least something is returned?

[eileenmcnaughton]

@magnolia61 I mean that would address the issue - but the fact it's not redirecting seems like the real bug?