[Plugin: Adwit Banner Manager] Adwit is currently under a major update

I have 2.2.3 version and configured all the ads and they were workng good but now all of a sudden i see the error on the Adwit-Banner ‘manager’ and ‘Zones’ options.

‘The page you are looking for is temporarily unavailable. Please try again later.’
and
‘Adwit is currently under a major update, if the problem persists please contact Website Administrator’.

Could you please tell me when is the next version coming up so that i can configure the ads again.

https://www.ads-software.com/extend/plugins/adwit-banner-manager/